d12

1. Design a study that uses a dependent samples design and a study that uses an independent samples design.  Be sure to make clear your independent and dependent variables. 

2. From the study below find the following:

 

a. To identify the IV and DV

b. To evaluate whether each study design reflects appropriately a dependent sample design and an independent sample design.

c. In your evaluation provide suggestions to correct the design of  each study.

Study:

 

Dependent:

Researchers want to know if diet effects shedding on dogs. The dog owners would compare how much fur their dogs shed before and after their changed diet.

Independent:

A cat and a dog, of equal size, were selected to compare the speed of the two groups. Each animal ran a distance of 500 feet 5 separate times. The average of the two animals were compared.