When participants in one treatment condition have characteristics that are different from the characteristics of participants in another treatment condition, then ____ may be threatened

Callie asks Jenna if she wants to play tag with a group of her friends. Jenna joins the group of children. The children decide on the rules for tag and as they play they make sure that each child is following the rules. This informal, child-initiated game of tag is likely taking place _____.

A. in a neighborhood B. in school C. under the direction of a parent D. in a sports league

Robert Atchley believed that people's self-concept usually does not change throughout the lifespan, and his view fits better with consistency theories than with stage theories

Indicate whether the statement is true or false