Article
Moral Impression Management: Evaluation
by an In-Group Member During a Moral IAT
Affects Perceptual Attention and Conflict
and Response Monitoring
Social Psychological and
Personality Science
2015, Vol. 6(2) 183-192
ª The Author(s) 2014
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DOI: 10.1177/1948550614548076
spps.sagepub.com
Félice van Nunspeet1,2, Belle Derks1,2, Naomi Ellemers1,2,
and Sander Nieuwenhuis2,3
Abstract
Previous research revealed that emphasizing morality increases motivational processes that improve people’s task performance.
Here we examined whether this emphasis differentially affects people’s performance in the presence of an in-group compared to
an out-group member. Ostensibly while being evaluated by another person, participants performed an Implicit Association Test
that was framed as a test of either their morality or their competence. Results showed a smaller bias toward Muslim women in the
morality compared to the competence condition, but this effect was more pronounced when participants were evaluated by a
member of their minimal in-group. Moreover, in that same condition, event-related potentials revealed increased perceptual
attention (N1) and affected conflict and response monitoring (N450 and error-related negativity). These findings suggest that
being moral is especially important when monitored by the in-group and reveal the cognitive processes associated with controlling
intergroup bias in a social situation.
Keywords
attitudes, categorization, control, morality, intergroup processes, self/identity, motivation and performance, prejudice/
stereotyping, social identity
According to the Oxford dictionary, being moral means
‘‘holding high principles for proper conduct.’’ But what is
considered ‘‘proper’’? Individuals can have their own principles of what is good and bad. Nevertheless, the groups to
which we belong and the group members to whom we feel
connected often define relevant standards of morality (see
also Ellemers & Van den Bos, 2012). Behaving according
to those standards is perceived as important, that is, people are
motivated to adjust their behavior to moral (compared to
competence) in-group norms (Ellemers, Pagliaro, Barreto, &
Leach, 2008), as a way to earn respect from fellow in-group
members (Pagliaro, Ellemers, & Barreto, 2011). Moreover,
people identify more strongly with a moral than a competent
group and are more proud to be a member of that group
(Leach, Ellemers, & Barreto, 2007). People’s willingness to
belong to moral groups and their pride in being a moral group
member can be explained by Social Identity Theory which
proposes that people’s self-views depend upon the groups to
which they belong (Tajfel, 1978). Indeed, moral characteristics convey important social information, that is, when people
form an impression of others, they are more inclined to gather
information concerning morality than about competence or
sociability, both explicitly (Brambilla, Rusconi, Sacchi, &
Cherubini, 2011) and implicitly (i.e., when an impression has
to be made within milliseconds; Willis & Todorov, 2006).
Moreover, people monitor their own behavior to maintain a
moral self-image (Jordan & Monin, 2008). Thus, due to the
identity-defining function of morality—especially in group
contexts—being moral is what we consider important in others and ourselves (Ellemers & Van den Bos, 2012). The motivation to be moral elicits the tendency to adjust one’s
behavior to moral norms, even on less explicit measures. van
Nunspeet, Ellemers, Derks, and Nieuwenhuis (2014) have
shown that people adapt their behavior when this is perceived
as indicative of their morality. During an Implicit Association
1
Social and Organizational Psychology Unit, Institute of Psychology, Leiden
University, the Netherlands
2
Leiden Institute for Brain and Cognition, Leiden, the Netherlands
3
Cognitive Psychology Unit, Institute of Psychology, Leiden University, the
Netherlands
Corresponding Author:
Félice van Nunspeet, Social and Organizational Psychology Unit, Institute of
Psychology, Leiden University, P.O.B. 9555, 2300 RB, the Netherlands.
Email:
[email protected]
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Test (IAT) participants were more inclined to control their
negative bias toward Muslim women when they thought the
test measured their morality (when compared to their
competence).
Since the significance of morality derives from its implications for people’s social identity, we expect the motivation to
be moral to be particularly relevant in an in-group context. We
thus hypothesize that when participants are evaluated by an
in-group member, rather than an out-group member, they are
more motivated to control their bias during performance on a
‘‘moral’’ IAT.
Moral Performance and Event-Related Brain Potentials
(ERPs)
The desire to be moral may elicit socially desirable answers,
which complicates the interpretation of self-reports on the
importance of morality. Additionally, it remains unclear how
people control their behavior to appear moral. Examining the
cognitive processes involved in displaying moral behavior
can elucidate how this is achieved.
van Nunspeet et al. (2014) previously revealed that three
different types of cognitive processes were affected when the
implications of the IAT were presented in terms of morality
compared to competence, namely perceptual attention toward
stimulus information, the processing of stereotypeincongruent versus stereotype-congruent information, and
response monitoring. ERPs suggested that participants paid
more attention to the group membership of the targets presented in the IAT. This so-called social categorization was
evident in modulations of the N1 and P150, two ERP components occurring around 100–200 ms after stimulus onset, that
typically are larger when viewing in-group versus out-group
faces (e.g., Amodio, 2010; Ito & Urland, 2003; Kubota & Ito,
2007). van Nunspeet et al. (2014) argued that perceptual
attention to the group membership of the IAT targets was
enhanced to enable participants to perform in line with their
moral values.
When morality instead of competence was emphasized in
the IAT instruction, participants also showed enhanced brain
responses to the difference between stereotype-incongruent
and stereotype-congruent trials. This process of conflict monitoring can be observed in the N450, a negative deflection
around 400–500 ms after stimulus onset which is evident in
language incongruencies (e.g., Nigam, Hoffman, & Simons,
1992), the Stroop task (e.g., Rebai, Bernard, & Lannou,
1997), and the IAT (Williams & Themanson, 2011). Furthermore, participants seemed to be more concerned about displaying immoral than incompetent behavior, as the participants
who had read the moral test implications also showed enhanced
error monitoring. A process associated with the error-related
negativity (ERN), that is, a negative deflection within 100 ms
after a response is given which is known to be larger for incorrect than correct responses (e.g., Gehring, Goss, Coles, Meyer,
& Donchin, 1993) and for significant compared to nonsignificant errors (Hajcak, Moser, Yeung, & Simons, 2005).
Social Psychological and Personality Science 6(2)
Moral Performance in Group Contexts
In the current research, we hypothesize that participants are
more motivated to perform in line with moral values when
they are being evaluated by a self-relevant other. To examine
this, we need to exclude alternative motivations to control
bias, such as the wish to avoid offending the IAT target group
in the presence of an ethnic out-group member (Lowery,
Hardin, & Sinclair, 2001; Richeson & Ambady, 2003). We
therefore introduced minimal categories. Based on a questionnaire ostensibly assessing personality styles, non-Muslim participants were evaluated by a non-Muslim individual who was
presented as someone with the same (in-group) or another
(out-group) personality type.
We thus predicted that participants show a weaker IAT
bias when the moral (compared to competence) test implications are emphasized, especially when they are evaluated by
an in-group (vs. out-group) member. Extending prior research
(van Nunspeet, Ellemers, Derks, & Nieuwenhuis, 2014), we
also anticipated that participants who are evaluated by an
in-group member and to whom the moral test implications are
emphasized show enhanced ERP modulations associated with
early perceptual attention (indexed by N1 and/or P150 modulations) and conflict- and error monitoring (indicated by the
N450 and ERN). We tested these hypotheses in two studies
by examining whether the morality/in-group condition differed from the other three conditions. Specifically, we conducted an initial behavioral study (Study 1) and a follow-up
study in which we recorded an electroencephalogram (EEG)
during IAT performance (Study 2).
Study 1
Method
Participants and Design
Ninety-five non-Muslim students (3 males, Mage ¼ 19.2 years,
SD ¼ 2.0) participated for money or course credits. One participant was excluded from the analyses because he or she
responded too late on more than 25% of trials, indicating
lack of attention. Participants were randomly assigned to
conditions in the 2 (task domain: morality/competence)
2 (evaluator: in-group/out-group member) between-participants
design.
Procedure
After participants signed an informed consent in which it was
explained that their participation could be recorded on video,
they were seated in an individual room with a webcam, headphone, and a camera placed in a top corner of the cubicle.
Participants were told they would be paired with another participant based on questionnaire scores (ostensibly) assessing
their personality styles and indicating whether they were
either a so-called ‘‘P’’ type or a so-called ‘‘O’’ type. After
completing the questionnaire and a short pause, participants
van Nunspeet et al.
185
Figure 1. Example of an Implicit Association Test (IAT) trial.
saw their own and other participants’ scores (i.e., participant
numbers were presented in combination with the P- and
O-personality styles). Participants were then informed that
they would cooperate with a member either of the same group
or a different group (as determined by their personality style).
Then the IAT was introduced as a reaction time task during
which the other person (i.e., the evaluator) would observe
and give them feedback on every trial. After that, a webcam
connection was simulated. The evaluator introduced himself
or herself and told that he or she would observe and provide
feedback to the participant. A smile and thumbs up would
follow a correct trial; frowning and pointing thumbs down
an incorrect trial. Participants then read about either the moral
implications or competent implications of the upcoming task
and started with the IAT.
In reality, all participants were said to have a P-personality
style and were introduced to a (same gender) confederate
whose introduction was prerecorded. After the IAT, participants completed additional questions, were debriefed, and
thanked. The experiment lasted approximately 50 min.
target concepts consisted of 10 pictures of non-Muslim and 10
pictures of Muslim women (faces without and with a headscarf,
respectively). Stimuli that represented positive and negative
attributes consisted of five pictures of positive and five pictures
of negative scenes selected from the International Affective
Picture System (IAPS; Lang, Bradley, & Cuthbert, 2005).
For congruent trials, pictures of non-Muslim women
shared the same response key as positive pictures, and pictures of Muslim women shared the same response key as negative pictures. For incongruent trials, this was the case for
non-Muslim women and negative pictures and for Muslim
women and positive pictures. The order of the incongruent
blocks was counterbalanced across participants. Training
Blocks 1, 2, and 4 consisted of 26 trials, and Test Blocks 3 and
5 of 156 trials each. Every trial started with a fixation point,
followed by a stimulus, a blank screen, and a feedback screen
(Figure 1). To ensure that participants were aware that the
evaluator (presented during the feedback) was an in- or an
out-group member, two text displays indicated the group
memberships of the participant and the evaluator. In case participants did not respond in time, the feedback screen showed
the words ‘‘too late.’’
Instruments
The IAT. Participants performed an IAT as designed by Greenwald, McGhee, and Schwartz (1998). Stimuli representing the
Task domain. Task domain was introduced using the instructions described in van Nunspeet et al. (2014). Without
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Social Psychological and Personality Science 6(2)
mentioning the IAT design, or how performance would be
measured, participants read the test would indicate their moral
values concerning egalitarianism in the morality condition or
their ability to learn new tasks in the competence condition.
In both conditions, participants were instructed to respond as
quickly and accurately as possible. The test implications were
repeated before each test block.
The IAT effect. The dependent measure was the IAT effect (i.e.,
the D-score), which was calculated as the difference in reaction
times on incongruent and congruent trials divided by a pooled
SD of all correct trials (Greenwald, Nosek, & Banaji, 2003; van
Nunspeet et al., 2014).
Checks. To check that the perceived validity of the IAT did not
differ between conditions, we asked participants to respond to
the statement, ‘‘My test score can assess what kind of person I
am.’’ Furthermore, we asked to what extent participants
hoped to have made a good impression on the evaluator, ‘‘I
hope the evaluator has the impression that I am competent/
kind/moral’’ (3 items, a ¼ .90). Identification with the
P-type group was checked with 2 items (‘‘I identify strongly
with the P group’’ and ‘‘I feel equal to the other group members in terms of general attitudes and beliefs’’; r ¼ .41, p <
.001). Participants could respond on a 7-point scale (1 ¼ completely disagree to 7 ¼ completely agree).
Results
Checks
As intended, participants in the four experimental conditions
did not differ in their ability to identify with the experimentally created in-group (grand-average M ¼ 3.77, SD ¼
1.20), F(3, 90) ¼ 1.37, p ¼ .26, and did not think differently
about the perceived validity of the test, M ¼ 3.64, SD ¼ 1.62;
F < 1. In line with prior findings, participants in the morality
condition indicated positive impression management to be
more important than participants in the competence condition,
Mmorality ¼ 4.83, SD ¼ 1.01; Mcompetence ¼ 4.28, SD ¼ 1.04;
F(1, 90) ¼ 6.58, p ¼ .01, Z2p ¼ .07. There was neither an evaluator effect nor an interaction effect, Fs < 1.49, ps > .23.
Figure 2. Condition means relevant to the interaction effect on the
D-scores.
condition, Mmorality ¼ 0.18, SD ¼ 0.34; Mcompetence ¼ 0.36,
SD ¼ 0.39. 1 We also found an interaction effect between
domain and evaluator, F(1, 90) ¼ 4.26, p ¼ .04, Z2p ¼ 0.05
(Figure 2). As expected, participants who were evaluated by
an in-group member while they performed the ‘‘moral’’ IAT
showed a significant weaker negative bias (Mmorality/in-group ¼
0.10, SD ¼ 0.32) than participants in the other conditions
(Mmorality/out-group ¼ 0.26, SD ¼ 0.34; Mcompetence/in-group ¼
0.43, SD ¼ 0.33; M competence/out-group ¼ 0.29, SD ¼ 0.44),
t(93) ¼ 2.65, p ¼ .01.
These findings extend previous research by showing that
moral impression management is particularly important in
an intragroup context (even if the broader significance of
the in-group is relatively minimal). In Study 2, we examine
the cognitive processes associated with the tendency to conform to moral values in group contexts.
Study 2
IAT Effect
Method
Participants and Design
More errors were made on incongruent (M ¼ 9.35, SD ¼ 7.01)
than congruent trials (M ¼ 6.46, SD ¼ 5.40), t(93) ¼ 4.50,
p < .001, which was not affected by task domain or evaluator,
Fs < 1.87, ps > .18. Overall, participants showed the standard
IAT effect, indicating a negative implicit bias toward Muslim
women, t(93) ¼ 6.83, p < .001. Consistent with previous
research (van Nunspeet et al., 2014), an analysis of variance
(ANOVA) with the D-score as dependent variable and domain
and evaluator as independent factors revealed a significant
main effect of domain, F(1, 90) ¼ 5.57, p ¼ .02, Z2 p ¼
0.06. Overall, participants in the morality condition showed
a smaller IAT effect than participants in the competence
Sixty-seven non-Muslim, right-handed, healthy students
(18 males, M age ¼ 20.6 years, SD ¼ 2.1) participated for
money or course credits. Three participants were excluded
from all analyses because they responded too late on more
than 25% of the trials, indicating lack of attention. Two other
participants could not be included in the analysis of self-report
data because they failed to complete the questions, and four
participants had to be excluded from the ERP analyses, because
of technical problems during the EEG acquisition. Remaining
participants were randomly distributed across conditions of the
2 (domain: morality/competence) 2 (evaluator: in-group/outgroup member) between-participants design.
van Nunspeet et al.
Procedure
The procedure and measures were similar to Study 1, with the
following exceptions. Participants completed the questionnaire to ostensibly determine personality style before they
came to the EEG lab. The feedback screens in the IAT consisted of a photograph of the confederate instead of a movie
display. Finally, to elicit a sufficient number of errors to reliably estimate the ERN, the maximum duration of the stimulus
presentation was reduced from 680 to 550 ms, and the total
number of test trials increased to 600 (300 congruent and
300 incongruent trials).
EEG Acquisition
The EEG was recorded from 19 silver/silver chloride (Ag/
AgCl) scalp electrodes mounted in an elastic cap and, from
the left and right mastoids, using a 19-channel Biosemi
active-electrode recording system (sampling rate 256 Hz).
To assess horizontal and vertical eye movements, electrodes
were placed on the outer canthi of the eyes and approximately
1 cm above and below the participant’s right eye. EEG activity was recorded using ActiView software, off-line data analyses were performed using brain vision analyzer, and the
experiment was presented with E-prime software. The EEG
signal was referenced off-line to the average mastoid signal,
corrected for ocular and eyeblink artifacts using the method
of Gratton, Coles, and Donchin (1983), and filtered (1–15
Hz). Single-trial stimulus-locked and response-locked epochs
were extracted, ranging from 300 to 1,000 ms after the
event. These epochs were subjected to artifact rejection, then
averaged and baseline corrected by subtracting the average
signal value between 200 and 0 ms prestimulus or between
300 and 50 ms prior to the response. Separate stimuluslocked ERP epochs were created for correct congruent and
incongruent trials with pictures of Muslim and non-Muslim
women. Separate response-locked ERP epochs were created
for correct and error trials.
ERP Analyses
Visual inspection of the data indicated that the N1, P150, and
ERN components were most evident at electrode sites FCz
and Cz. The N450 was most evident at CPz and Pz. The
stimulus-locked ERP components were quantified as the peak
amplitude within a time window poststimulus (N1: 90–110
ms, P150: 100–250 ms, and N450: 325–500 ms), whereas the
ERN was quantified as the peak amplitude of the signal
between 50 and 150 ms around the response. Each average
ERN was based on at least 10 trials.2 Peak amplitude values of
the N1, P150, and N450 were submitted to a 2 (electrode site:
FCz/Cz or CPz/Pz) 2 (target: Muslim/non-Muslim women)
2 (congruency: congruent/incongruent) mixed-model
ANOVA. Peak amplitude values of the ERN were submitted
to a 2 (electrode site) 2 (accuracy: correct/error) 2 (congruency) mixed-model ANOVA.3 In every analysis, domain
187
(morality/competence) and evaluator (in-group/out-group)
were included as between-participant factors.
Results
Behavioral Results
Checks. As intended, identification with the in-group (2 items,
r ¼ .50, p < .001) was equal across experimental conditions
(grand-average M ¼ 3.53, SD ¼ 1.36), F < 1, as was the perceived validity of the test; M ¼ 3.58, SD ¼ 1.56; F < 1. Again,
participants in the morality condition indicated more concern
about impression management than in the competence condition, Mmorality ¼ 5.25, SD ¼ 0.83; Mcompetence ¼ 4.63, SD ¼
0.82; F(1, 58) ¼ 8.39, p ¼ .01, Z2p ¼ .13.
IAT effect. More errors were made on incongruent (M ¼ 34.4,
SD ¼ 18.4) than congruent trials (M ¼ 25.6, SD ¼ 15.5),
t(63) ¼ 4.87, p < .001, and participants in the in-group evaluator condition made fewer errors (M ¼ 50.3, SD ¼ 24.9) than
participants in the out-group evaluator condition (M ¼ 70.4,
SD ¼ 33.4), F(1, 60) ¼ 7.28, p ¼ .01, Z2p ¼ .11. Overall, participants showed the standard IAT effect, indicating a negative
implicit bias toward Muslim women, t(63) ¼ 5.46, p < .001.
However, IAT effects were not affected by evaluator or task
domain (Fs < 1), nor did the morality/in-group condition differ from the other three conditions, t(63) ¼ 0.12, p ¼. 90. This
is likely due to the changes we made to optimize the task for
ERP recordings: To ensure enough errors to reliably estimate
the ERN, the maximum response time was reduced. In Study
1—and in previous research (van Nunspeet et al., 2014)—
participants controlled their bias by delaying responses on
congruent trials, which may have been impossible in this
study, given the tight response deadline. A follow-up study
corroborates this explanation. When we examined behavioral
effects of task instruction and in-group/out-group evaluators
using a response window of 680 ms (as in Study 1 and prior
research), the IAT bias was significantly lower in the morality
compared to the competence condition, when participants
were evaluated by a minimal in-group member (van
Nunspeet, Ellemers, & Derks, 2014).
ERP Results
Perceptual attention
N1. The N1 results revealed the expected evidence of social
categorization: The N1 was larger for pictures of Muslim
women (M = 7.18 mV, SE ¼ 0.35) than non-Muslim
women (M ¼ 6.91, standard error [SE] ¼ 0.35), F(1, 56) ¼
3.52, p ¼ .07, Z2 p ¼ .06 (Figure 3). As predicted, the
discrepancy between these targets differed depending on the
interaction between task domain and evaluator, F(1, 56) ¼
4.36, p ¼ .04, Z2p ¼ .07: The N1 modulation of social categorization was significantly increased in the morality/in-group
condition when compared to the other conditions, t(59) ¼
2.74, p ¼ .01 (Figure 4).4
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Social Psychological and Personality Science 6(2)
Figure 3. Differences in N1 and P150 amplitudes for pictures of Muslim and non-Muslim women. Only the N1 modulation interacted with task
domain and evaluator.
Figure 4. The mean differences in N1 amplitude between Muslim and
non-Muslim targets for each condition.
P150. Analyses of the P150 only revealed the expected
main effect of target: The P150 was larger for pictures of
Muslim women (M ¼ 5.44 mV, SE ¼ 0.48) than for pictures
of non-Muslim women (M ¼ 3.77, SE ¼ 0.43), F(1, 56) ¼
93.13, p < .001, Z2 p ¼ .62 (Figure 3). No effects of task
domain or evaluator were found (Fs < 1).
Conflict and response monitoring
N450. Results showed the anticipated effect of congruency: The N450 was larger for incongruent (M ¼ 0.13
mV, SE ¼ 0.33) than congruent (M ¼ 0.64, SE ¼ 0.40) trials,
F(1, 56) ¼ 5.92, p ¼ .02, Z2p ¼ .10 (Figure 5). There was also
a main effect of target: The N450 was smaller for Muslim
(M ¼ 0.79 mV, SE ¼ 0.33) than non-Muslim trials (M ¼
0.28, SE ¼ 0.37), F(1, 56) ¼ 24.06, p < .001, Z2p ¼ .30. The
predicted three-way interaction between congruency, domain,
and evaluator was not significant (F < 1). However, there was
a significant four-way interaction between congruency,
domain, evaluator, and target, which revealed that conflict
monitoring (i.e., the difference between the N450 on incongruent vs. congruent trials) differed depending on the interaction between task domain, evaluator, and (unexpectedly)
target, F(1, 56) ¼ 5.75, p ¼ .02, Z2p ¼ .09. Separate analyses
for the task domain conditions revealed that the interaction
between target and evaluator was significant in the morality
condition, F(1, 31) ¼ 5.36, p < .03, Z2p ¼ .15, but not in the
competence condition, F(1, 25) ¼ 1.30, p ¼ .27. This interaction indicated that the difference in conflict monitoring
between Muslim and non-Muslim targets was evident in
the in-group evaluator condition, F(1, 31) ¼ 6.61, p < .02,
Z2 p ¼ .18, but not in the out-group evaluator condition,
F < 1. Specifically, conflict monitoring differed in the morality/in-group condition when compared to the other three
conditions, t(59) ¼ 2.31, p ¼ .03, but—unexpectedly—this
occurred because these participants showed less conflict
monitoring for Muslim than non-Muslim targets (Figure 6).
ERN. As anticipated, results showed that the ERN was larger
for incorrect (M ¼ 6.90 mV, SE ¼ 0.69) than correct trials
(M ¼ 2.95, SE ¼ 0.46), F(1, 44) ¼ 173.52, p < .001, Z2p ¼ .80.
There was a marginally significant interaction effect between
accuracy and task domain, F(1, 44) ¼ 3.37, p ¼ .07, Z2p ¼ .07,
indicating that the ERN modulation was somewhat larger in the
competence (Mdifference ¼ 11.22 mV, SE ¼ 1.12), F(1, 44) ¼
100.07, p < .001, Z2p ¼ .70, than the morality condition (Mdifference
¼ 8.48 mV, SE ¼ 0.99), F(1, 44) ¼ 73.49, p < .001, Z2p ¼ .63.
The predicted three-way interaction between congruency, domain,
and evaluator was not significant (F < 1), and we thus did not
van Nunspeet et al.
189
Figure 5. Differences in N450 amplitudes for incongruent and congruent trials.
Figure 6. The mean differences in N450 amplitude between incongruent and congruent trials for each condition.
compute planned contrasts. Interestingly, however, the overall
interaction effect between task domain and evaluator was marginally significant, F(1, 44) ¼ 3.59, p ¼ .07, Z2p ¼ .08, and significant
at Cz, F(1, 44) ¼ 4.07, p ¼ .05, Z2p ¼ .09. Although the simple contrasts were not significant across the two electrode sites (Fs < 2.54,
ps > .12), there is a reversal in the means pattern, indicating that the
ERN modulation in the morality and competence conditions
depends on the evaluator (Figure 7). Response monitoring (on
incorrect and correct trials) under in-group evaluation was
enhanced in the morality (M ¼ 2.70 mV, SE ¼ 0.83) compared
to the competence condition (M ¼ 1.36, SE ¼ 0.94), but under
out-group evaluation, it was enhanced in the competence (M ¼
2.96, SE ¼ 0.98) compared to the morality condition (M ¼
0.88, SE ¼ 0.86; Figure 8).
General Discussion
The current studies extend previous research on the motivation to comply with moral in-group norms (Ellemers et al.,
2008; Pagliaro et al., 2011). We discovered that participants
controlled implicit bias when the moral implications of an
IAT were emphasized and when they were evaluated by an
(minimal) in-group member. In Study 1, participants
responded more slowly on congruent IAT trials, suggesting
inhibition of prepotent reaction tendencies possibly revealing
prejudice. These findings are consistent with previous
research concerning people’s moral motivation to inhibit prejudice (van Nunspeet et al., 2014). Importantly, however,
such a motivation is different from the attempts to appear
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Social Psychological and Personality Science 6(2)
Figure 7. The error-related negativity in the morality and competence conditions in case of an in-group (left) or out-group evaluator (right).
Figure 8. Mean error-related negativity (ERN) amplitudes (averaged
over correct/incorrect trials, and electrode sites FCz/Cz) as a function
of task domain and evaluator.
unprejudiced toward target group representatives (e.g., Lowery et al., 2001; Richeson & Ambady, 2003). We argue that
an in-group categorization based on membership of the IAT
target groups raises fundamentally different concerns than the
ones we investigated in the current research. Specifically, the
desire to avoid offending a representative of the target group
(a Muslim woman or a Black individual) is quite different
from the desire to demonstrate one’s morality in front of
self-relevant others (based on minimal group characteristics).
Complementing prior work, we thus reveal that bias control
can also be induced by the concern to appear moral in the eyes
of others who are relevant to one’s self-views.
Complementing previous research (van Nunspeet et al., 2014)
and consistent with our hypothesis, ERP results in Study 2 clearly
showed that the emphasis on morality and the evaluation by an ingroup member was associated with enhanced perceptual attention
and social categorization of the target women in the IAT (indicated by the N1). These results imply that emphasizing the moral
implications of the IAT do not make people insensitive to social
categorizations. Instead, participants were more focused on the
identity of the different targets presented. Their perceptual attention increased, presumably to be able to adjust behavior, especially in the presence of in-group members. In other words, the
van Nunspeet et al.
motivation to behave morally in front of self-relevant others
helped participants to approach the task differently and to initiate
processes that would help them to accomplish their goal.
We also found that conflict monitoring of stereotypeincongruent versus stereotype-congruent trials (indexed by the
N450) differed in the morality/in-group condition when compared to the other conditions. This is in line with our reasoning
that appearing moral is especially important in front of in-group
members, as this particular social context affected conflict monitoring under moral task instructions. Unexpectedly, however,
this effect was moderated by the IAT targets. Conflict monitoring
of participants in the morality/in-group condition was clearly
diminished for Muslim, as compared to non-Muslim, targets.
Although we did not anticipate such an effect, this may indicate
that participants in the morality/in-group condition adopt a different performance strategy compared to participants in the other
conditions. Specifically, this observation seems to reveal that
these participants are less likely to determine whether Muslim
trials are stereotype congruent or stereotype incongruent, presumably because they are less inclined to rely on societal stereotypes.
The introduction of a social context (i.e., an evaluator) also
affected the process of response monitoring, albeit somewhat
differently and less strongly than expected (effects were only
marginally significant). Although we had anticipated that error
monitoring (indicated by the ERN) might be enhanced in the
case of an emphasis on morality and evaluation by an in-group
member, participants in this condition revealed enhanced monitoring of their incorrect as well as correct responses. Likewise,
overall response monitoring was enhanced for participants who
had been confronted with the test implications concerning their
competence and who were evaluated by an out-group member.
Thus, results concerning different ERP components are consistent with our general prediction that task motivation and strategy
are adapted when moral implications of the IAT are emphasized,
and performance is evaluated by an in-group member. When interpreting our—predicted and unanticipated—results, it is important
to keep in mind that we addressed different types of processes that
occur at separate time points. Future research could more specifically examine whether the nature of specific adaptations that are
made in different phases of the process actually indicates different
types of motivation. For instance, being reminded of the implications of one’s task performance in terms of moral in-group values
might cause an intrinsic motivation to approach the task differently
resulting in early attention to stimulus information in order to influence one’s responses. On the other hand, when the desire to adapt
one’s behavior is driven more by an external motivation, for
instance, when performance is evaluated by an out-group member
or when the competence implications of the task are emphasized,
this may only show up (relatively) later, during the processing of
one’s incorrect responses.
The current findings revealed that and how an emphasis on the
moral implications of one’s behavior, in combination with evaluation by an in-group member, reduces people’s implicit prejudice and affects their perceptual attention and conflict—and
response monitoring during task performance. These results
extend previous research in several ways. First, they demonstrate
191
the importance of morality for the self and social identity by
revealing that people are especially motivated to adjust their
moral task performance when monitored by a self-relevant
other—even if this is indicated by a shared minimal group membership. Second, the examination of ERPs—with their high temporal precision—made it possible to reveal how people’s
motivation to appear moral affects unconscious cognitive processes: Evaluation by an in-group member not only increases people’s moral task performance but also affects the way they attend
to and process information that is relevant for behavioral adjustment. Furthermore, the current findings could be helpful for the
development of interventions aimed at prejudice control that do
not require the presence of target group representatives.
Acknowledgments
We thank Tamar van Herk, Laura de Reus, Ilona Domen, and Alma
Vermeulen for their help with data collection; Marieke Visser and
Wouter Steijn for their contribution to the experiment; and David
Amodio for his advice concerning data analyses.
Declaration of Conflicting Interests
The author(s) declared no potential conflicts of interest with respect to
the research, authorship, and/or publication of this article.
Funding
The author(s) disclosed receipt of the following financial support for
the research, authorship, and/or publication of this article: This work
was supported by the SNS-Reaal KNAW-Merian prize; and the
NWO-Spinoza prize awarded to Naomi Ellemers by the Royal
Netherlands Academy of Arts and Sciences (KNAW) and the
Netherlands Organization for Scientific Research (NWO); and a
NWO-VENI grant [451-08-022] awarded to Belle Derks.
Notes
1. Consistent with previous research (van Nunspeet et al., 2014), this
difference was related to increased response latencies on congruent trials in the morality compared to the competence condition;
M morality ¼ 494.85, SD ¼ 20.10; M competence ¼ 480.65, SD ¼
16.61; F(1, 93) ¼ 13.62, p < .001, Z2p ¼ .13.
2. Some participants made less than 10 errors, explaining different
degrees of freedom between the stimulus- and response-locked
event-related brain potential analyses.
3. See the Supplementary Data (see Online Supplemental Material
found at http://spps.sagepub.com/supplemental) for interaction
effects with electrode site.
4. Simple main effects, following the higher order interaction, are
reported in the Supplementary Data (see Online Supplemental
Material found at http://spps.sagepub.com/supplemental).
Supplemental Material
The online supplementary material is available at http://spps.sagepub.
com/supplemental.
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Author Biographies
Félice van Nunspeet was a PhD student at the Social and Organizational Psychology Unit of Leiden University during the time of
submission of the original manuscript. She completed her PhD degree
and currently works as a postdoctoral researcher at the same
department and institution, where she continues to examine people’s
(intrinsic) motivation to be moral using behavioral and neurobiological measures such as electroencephalogram and functional magnetic
resonance imaging.
Belle Derks is an associate professor in Social and Organizational
Psychology at Leiden University. Her research focuses on the psychological (motivation, performance) and physiological (cardiovascular
activity, electroencephalogram) impact of stigma and group-based
devaluation.
Naomi Ellemers is a full professor of the social psychology of organizations at Leiden University. Her work on group processes and intergroup relations includes experimental studies as well as applied
research in organizations.
Sander Nieuwenhuis is a full professor in cognitive psychology at
Leiden University. In his research, he uses electroencephalogram,
functional magnetic resonance imaging, psychofarmacology, computational models, and various behavioral methods to examine how the
brain regulates and monitors information processing to optimize behavioral performance.