Alle Publikationen
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2017
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(2017): Magnitude estimation is influenced by social power. In: Journal of Numerical Cognition 3 (2), S. 147-163. DOI: 10.5964/jnc.v3i2.52
Abstract: Examined whether social power affects estimation performance of spatial magnitudes (i.e., line estimation). Previous research has shown that social power affects basic cognitive processes and even influences the way individuals perceive their physical environment. In the present study, participants estimated the line length of a given number in an increase and a decrease condition, after (low versus high) social power had been manipulated between participants via role assignment. Results show that in the increase condition, low-power participants overestimated line lengths, whereas such a bias was not observed for high-power participants. In contrast, the power manipulation did not affect performance in the decrease condition, suggesting that proportion judgement strategies might have been applied here, thereby reducing the overall bias in line estimations. It is concluded that findings support the notion that social power has an impact on the perception of the physical environment and that perception can depend on personal as well as situational factors. Moreover, it is argued that the present research suggests that high (compared to low) social power may help people to overcome biases in overestimating magnitudes.
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(2017): Power increases anchoring effects on judgment. In: Social Cognition 35 (1), S. 40-53
Abstract: Four experiments test the impact of power (vs powerlessness) on anchoring effects. Anchoring refers to the tendency to assimilate one's judgment to a previously considered numeric standard. Based on the notion that power facilitates the activation of and reliance on accessible information, it is hypothesized that power increases numeric anchoring effects on judgment, compared to powerlessness. Across studies, consistent support for this idea was found: when testing estimations of factual values (Experiments 1 and 2), subjective evaluations (Experiment 3), and negotiation behavior (Experiment 4). The findings of Studies 2 to 4 qualify the dominant idea in power literature that power reduces conformity to others' opinion. Power increases conformity to others' opinion, if such opinion is presented as an anchor and therefore processed more automatically. These findings also have important methodological implications for power research. They show that differences in stimulus presentation can steer observed effects of power in opposite directions.
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