This study examined motivational effects of feedback on motor learning. Specifically, we investigated the influence of social-comparative feedback on the learning of a balance task (stabilometer). In addition to veridical feedback (error scores reflecting deviation from the target horizontal platform position) about their own performance after each trial, two groups received false normative inf...

An apple can be held in your hand if you are eating it, or be perceived in a fruit bowl from a few meters away. While the apple’s real-world size is constant, the visual angle it subtends in your visual field varies based on your distance to the apple. Given the range of visual angles that an object can subtend in the visual field, is there a visual angle that is preferred? The current experime...

The standard Engineer-Lawyer problem (Kahneman & Tversky, 1973) points to the failure of reasoners to integrate mentioned base-rate information in arriving at likelihood estimates. Research in this area nevertheless has presupposed that participants respect complementarity (i.e., participants ensure that competing estimates add up to 100%). A survey of the literature leads us to doubt this pre-...

It has been established that normative social influence can be used effectively in persuasive technology. However, it is unknown whether the application of more social pressure makes it more effective. To test this hypothesis, a quantitative experiment was conducted on the online social network Facebook. Although evidence to support the hypothesis was found, it cannot be concluded from this exp...

Motivated by a desire to extend the Social Influence Model of Technology Use, this paper empirically examines the impact of normative social influence on group media preference patterns and group meeting outcomes in a setting where established groups voluntarily used various communication media over a three-month software development project period. The overall results suggest that conformity t...

American college students’ and children’s scores on two measures of the need for social approval closely follow changes in the state of the larger society, decreasing signiWcantly from 1958 to 1980 and leveling oV between 1980 and 2001 (total nD 36,004 across 203 samples of college students responding to the Marlowe–Crowne Social Desirability scale; total nD 4741 across 38 samples of children r...

In this work we consider the task of the automatic semantic annotation of the normative modifications enclosed in Italian legal texts. The system is based on a deep syntactic parsing coupled with a semantic analysis based on frames.

There has been a major shift in research on human reasoning toward Bayesian and probabilistic approaches, which has been called a new paradigm. The new paradigm sees most everyday and scientific reasoning as taking place in a context of uncertainty, and inference is from uncertain beliefs and not from arbitrary assumptions. In this manuscript we present an empirical test of normative standards ...