Preschoolers and school-age children have equal difficulties in judging how challenging a task is

With nondirectional hypotheses, the appropriate p value for ANOVA is one tailed, the probability of obtaining an F as large or larger than that computed, were the null hypothesis true.

a. true b. false

One-year-old Cindy was playing a hiding game with her father. He hid her toy under a blanket and then Cindy would try to find it. Later, he added a second blanket and she watched him hide the toy under it

Interestingly, Cindy still looked under the first blanket. She was _____________. a. engaging in mental representation b. making the A-not-B error c. engaging in deferred imitation d. making an categorization error