"On models and vases: Body dissatisfaction and proneness to social comparison effects": Retraction of Trampe, Stapel, and Siero (2007)

Reports the retraction of "On models and vases: Body dissatisfaction and proneness to social comparison effects" by Debra Trampe, Diederik A. Stapel and Frans W. Siero (Journal of Personality and Social Psychology, 2007[Jan], Vol 92[1], 106-118). This retraction follows the results of an investigation into the work of Diederik A. Stapel (further information on the investigation can be found here: https://www.commissielevelt.nl/). The Noort Committee has determined data supplied by Diederik A. Stapel to be fraudulent. His co-authors were unaware of his actions and were not involved in the collection of the fraudulent data. (The following abstract of the original article appeared in record 2006-23056-009.) When and why do media-portrayed physically attractive women affect perceivers' self-evaluations? In 6 studies, the authors showed that whether such images affect self-evaluations depends jointly on target features and perceiver features. In Study 1, exposure to a physically attractive target, compared with exposure to an equally attractive model, lowered women's self-evaluations. Study 2 showed that body-dissatisfied women, to a greater extent than body-satisfied women, report that they compare their bodies with other women's bodies. In Study 3, body-dissatisfied women, but not body-satisfied women, were affected by both attractive models and nonmodels. Furthermore, in Study 4, it was body-dissatisfied women, rather than body-satisfied women, who evaluated themselves negatively after exposure to a thin (versus a fat) vase. The authors replicated this result in Study 5 by manipulating, instead of measuring, body dissatisfaction. Finally, Study 6 results suggested that body dissatisfaction increases proneness to social comparison effects because body dissatisfaction increases self-activation. (PsycINFO Database Record (c) 2012 APA, all rights reserved).     

Retraction statement: Judging the unexpected: Disconfirmation of situation‐specific expectancies

The following article from European Journal of Social Psychology, “Judging the unexpected: Disconfirmation of situation‐specific expectancies” by Marret K. Noordewier and Diederik A. Stapel published online on 1 January 2009 in Wiley Online Library ( wileyonlinelibrary.com ), has been retracted by agreement between the co‐author, the journal Editor in Chief, Tom Postmes, and John Wiley and Sons Ltd. The retraction has been agreed following the results of an investigation into the work of Diederik A. Stapel ( https://www.commissielevelt.nl/ ). The Levelt Committee has determined that this article contained data that was fabricated as supplied by Diederik A. Stapel. His co‐author was unaware of his actions, and not in any way involved. REFERENCE Noordewier, M. K. & Stapel, D. A. (2009). Judging the unexpected: Disconfirmation of situation‐specific expectancies. European Journal of Social Psychology, 39, 944–956. DOI: 10.1002/ejsp.591     

Speed Modulation in Swimming Frogs

Swimming movements of 7 European green frogs (Rana esculenta) were studied, starting from the detailed analysis of the speed and timing of the propulsive, glide, and recovery phases of their intermittent swimming behavior. First, the authors identified the spatiotemporal factors used by the frogs to modulate their swimming behavior. None of the gait variables correlated strongly with average swimming speed, and no significant correlations were found between variables belonging to different phases. There did not seem to be an obvious control strategy. Instantaneous speeds at the transition of the different phases all increased significantly with average speed, however. The strong correlation between maximal speed at the end of propulsion and the speed averaged over a cycle might reflect the dominance of the propulsive phase in the determination of the overall swimming speed. The modulation of swimming speed thus seemed largely comparable with the regulation of jumping distance. That finding was confirmed in a mathematical model, in which the positive correlations between both glide and recovery speeds, on the one hand, and average speed, on the other, were shown to be only mathematical consequences of the strong impact of the propulsive phase on overall swimming performance. That finding suggests that the correlations did not result from an active control strategy.     

Retraction statement: When nothing compares to me: how defensive motivations and similarity shape social comparison effects

The following article from European Journal of Social Psychology, “When nothing compares to me: How defensive motivations and similarity shape social comparison effects” by Diederik A. Stapel and Camille S. Johnson, published online on 26 September 2006 in Wiley Online Library ( wileyonlinelibrary.com ), has been retracted by agreement between the co‐author, the journal Editor in Chief, Tom Postmes, and John Wiley and Sons Ltd. The retraction has been agreed following the results of an investigation into the work of Diederik A. Stapel ( https://www.commissielevelt.nl/ ). The Levelt Committee has determined that this article contained data that was fabricated by Diederik A. Stapel. His co‐author was unaware of his actions, and not in any way involved. REFERENCE Stapel, D. A. &; Johnson, C. S. (2007). When nothing compares to me: how defensive motivations and similarity shape social comparison effects. European Journal of Social Psychology, 37, 824–838. DOI: 10.1002/ejsp.390     

The Mirror and I: When private opinions are in conflict with public norms

In two studies it is demonstrated that two self-saliency manipulations, often used interchangeably, can have profoundly different consequences. Whereas self-activation increased stereotyping in highly prejudiced participants, a mirror decreased stereotyping. Results show that this difference can be ascribed to the activation of specific self-aspects. Whereas a mirror increased both private and public self-awareness (and, hence, awareness of the social norm that stereotyping is bad), self-activation increased private self-awareness exclusively (and, hence, awareness of privately held negative stereotypes). The implications of these findings for the relation between self-awareness and conformity to social norms are discussed.     

Retracted: Correction or comparison? The effects of prime awareness on social judgments

In previous research on the effects of accessible information on social judgments, divergent explanations have been offered for contrast effects that occur as a consequence of prime awareness. Some authors favor a comparison explanation, whereas others favor a correction explanation. In two studies, we successfully disentangled comparison and correction contrast by demonstrating that whereas correction for unwanted influences is a general process that leads to contrast on various dimensions on which a target is judged, comparison effects are prime specific and occur mainly on comparison relevant dimensions. In addition, our findings indicate that for correction attempts to occur and succeed, respondents must have the feeling that these primes contaminate their target judgments and should be removed from their “true” reaction to the target. When people are not suspicious of the potential contaminating influences of priming stimuli, prime awareness is more likely to lead to prime‐target comparisons than to correction efforts. Copyright © 2009 John Wiley & Sons, Ltd.