Social interaction that occurs without obvious differences in power and status is referred to as

To study how members of a particular group change or remain the same as they grow older, the best method is:

cross-sectional research. a survey at the end of the time period. longitudinal research. establishing an experimental group and a control group.

Adolescents high in ________ may exert more effort and show more persistence when faced with challenging tasks

Fill in the blank with the appropriate word.