Problem

Solutions For Abnormal Psychology Chapter 2 Problem 20TY

Step-by-Step Solution

Solution 1

Correlation, cross-sectional, longitudinal and cohort studies involves many individuals for the research. This is called group design

Step #2 of 6

Hence the option a is not correct.

Step #3 of 6

In controlled group design approach the researcher creates two groups called the experimental group and control group. This type of approach is called controlled group design.

Random sampling as the name indicates it is the selection of the individuals for the research in a hit and miss manner. So the individuals are selected by chance not by choice so each and every individual has an equal chance of getting selected.

Step #4 of 6

Hence the option d is not correct.

Step #5 of 6

Longitudinal design is a study that takes place overtime. This includes at least two and often more measurement periods with the same individual at different times. These studies provide adequate amount of data but are time taking and expensive to complete

Step #6 of 6

Hence the correct option is.