According to research by de Haan & Johnson, increasing cognitive complexity is due to

Most types of family therapy assume that families function as systems, so the individual's problems are best understood and treated as an integral part of the family unit

Indicate whether the statement is true or false.

In an experiment examining the effects of size of plate on amount of food eaten, one group of participants is measured after eating food on 12 inch plates. A week later, the same group of participants is measured after eating food on 10 inch plates. This is an example of a ____ design

a. single-subjects b. between-subjects c. within-subjects d. matched groups