DrKelly Was Interested in Examining the Effects of High and Low

Multiple Choice

Dr.Kelly was interested in examining the effects of high and low quality after-school programs on children's social competence.Since the children were already attending their respective programs when the project began,Dr.Kelly had to take advantage of the natural separation of the participants into different groups and conduct a

A) quasi-experiment.
B) meta-analysis.
C) naturalistic observation.
D) structured observation.