When the variance _____ the groups is _____ and the variance _____ the groups is _____, we can expect a large F-ratio

Both new and old information are held temporarily in___ memory while it is being used, like computer RAM but working memory has small capacity and fades quickly.

Fill in the blank(s) with the appropriate word(s).

The timing of puberty is determined by:

A) genetics alone. B) genetics and a variety of environmental forces. C) the level of nutrition alone. D) the level of family stress alone.