Expectancies, performance, perceived ability, and causal attributions of males and females who were involved in competitive motor tasks after being matched with an opponent of similiar ability were studied. Results are discussed. (Author/DF)

Oxygen uptake, heart rate, and rating of perceived exertion were used to measure the effect of caffeine ingestion on active college students. The results do not support the general use of caffeine as an ergogenic aid for either males or females, although caffeine may have that effect on specific individuals. (Author/MT)

The increasing use of various VO2 max expressions as test measures is a problem because the magnitude of sex difference varies considerably with each expression. A valid match of male and female test subjects would consider physical activity history and the amount of endurance exercise done in the previous year. (Author/FG)

Investigation of differences between male and female students' reactions to receiving or not receiving performance feedback indicated that both sexes showed lower self-confidence when they did not receive feedback and that lack of self-confidence impaired the performance of males more than females. Participants were 111 fifth- and sixth-grade…

This study investigated the effects of sex and athletic status on reaction latencies and movement time. Four variables were studied: reaction time mean, reaction time consistency, movement time mean, and movement time consistency. (CJ)

Children from three to six years of age were tested to determine the relationship of age and sex to motor performance. Tests involved balancing, scrambling, catching, speed running, long jumping, and ball throwing. Although significant age and sex differences were found, it appeared that age generally was more closely related to performance than…

To reduce confusion regarding reported effects of age on maximal exercise heart rate, a comprehensive review of the relevant English literature was conducted. Data on maximal heart rate after exercising with a bicycle, a treadmill, and after swimming were analyzed with regard to physical fitness and to age, sex, and racial differences. (Authors/PP)

Researchers examined the effect of contextual variety on practice, retention, and transfer of the long and short badminton service in a college physical education class. Results indicated a practice schedule requiring students to change the plan of action from trial to trial facilitated retention and transfer of motor skills. (SM)