The sustained attention of 16 mildly retarded and 16 nonretarded adults was assessed during 2 60-minute vigilance tests differing in memory demand. Performance of retarded subjects declined more rapidly in later stages than did that of the nonretarded subjects. Implications for the study of memory load are discussed. (SLD)

Items showing sex differences on the revised Wechsler Adult Intelligence Scale (WAIS-R) were studied. In a sample of 206 young adults (110 males and 96 females), 15 items demonstrated significant sex differences, but there was no relationship of item-specific gender content to sex differences in item performance. (SLD)

Two studies involving 274 Air Force recruits and 163 college students, respectively, investigated the relationship between priming effects and declarative knowledge acquisition within repetitive practice models. Individual differences in repetition-priming effects uniquely predicted learning differences relative to other cognitive measures.…

Forty-eight male and 54 female left-handed junior college students in Stockholm were grouped according to familial sinistrality and strength of handedness. Performance on computerized reaction time (RT), maze, and verbal ability tests was assessed. Sex was the only factor differentiating left-handers on RT, and no factors affected verbal ability.…