A social psychologist who correlates the responses of half of the items on a questionnaire with the other half to check the accuracy of the measure is assessing

The concept of the zone of proximal development suggests that a child will improve more if he/she

a) is left to figure out a task on his/her own. b) uses trial and error practices independently. c) solves problems without assistance from peers. d) receives aid from someone more competent in task.

Longitudinal studies reveal that intelligence scores are fairly stable over time beginning at about age 6 but can fluctuate from age to age due to _________________

a. illness b. shyness c. changes in working memory d. consistent changes in children’s environments