Identify the IV and the DV in the following a Effects of Caf

Identify the IV and the DV in the following:

a. Effects of Caffeine on Mood
b. How trauma might influence memory
c. A sad group compared to a happy group on quality of life
d. Mean kids develop from authoritarian parenting style

Solution

Independent Variable: the variable that is varied or manipulated by the researcher, also known as presumed cause.

Dependent Variable: response that is measured, also known as the presumed effect

a. Effects of Caffeine on Mood

Independent Variable: caffeine

Dependent Variable: mood

b. How trauma might influence memory

Independent Variable: trauma

Dependent Variable: memory

c. A sad group compared to a happy group on quality of life

Independent Variable: sad group, happy group

Dependent Variable: quality of life

d. Mean kids develop from authoritarian parenting style

Independent Variable: authoritian parenting styles

Dependent Variable: Mean kids