Little Gilbert likes to watch his brother play the Nintendo. Gilbert is displaying

A classmate informs you that, while conducting a naturalistic observation study of children's play behavior, she had to ask the children to limit their play activity to only one area in the playground in order to make more accurate observations

Being familiar with observational methods, you should tell her that her study did not involve naturalistic observation because a. her study took place in a public setting. b. the play behavior was not naturally occurring. c. only one observation was made of the children's play behavior. d. naturalistic observational studies cannot be conducted with humans.

Crystallized intelligence is measured by tests of vocabulary, arithmetic, and general information

a. true b. false