Open feedback in gymnastic judging causes conformity bias based on informational influencing.

The aims of this study were twofold: (1) to determine whether open feedback (i.e. the ability to hear or see the scores of colleague judges after each performance) would lead judges in gymnastics to conform with their colleagues, and (2) to identify the underlying process on which this conformity is based.

Effectiveness of a lifestyle physical activity intervention in a women's organization.

Objective: The objective of the present study was to evaluate the effectiveness of a minimal contact physical activity intervention that was maximally integrated into the existing structures of a women's organization.

Methods: The intervention included one group meeting, a self-help booklet, and five monthly reminder letters and was implemented in four units of a rural women's organization. Two other units served as control group.

Addressing overreporting on the International Physical Activity Questionnaire (IPAQ) telephone survey with a population sample.

Objective: To examine a possible problem of overreporting and to describe the degree of error with the International Physical Activity Questionnaire (IPAQ) short telephone protocol.

Design: Cross-sectional study, using two different physical activity (PA) self-report protocols.

Setting: Telephone interviews about PA in Belgium.