Question 1

The BEST definition of an independent variable is a _____.

Accepted Answer

A)  measurable behavior that is exhibited by a participant and is affected by the dependent variable 
B)  variable that is manipulated by the experimenter to determine its causal effect on the dependent variable 
C)  variable that is kept constant during an experiment to prevent contamination of other variables 
D)  variable that cannot be manipulated by anyone

Question 2

An example of _________ correlation would be the more a mother smokes, the more damage a fetus suffers.

Accepted Answer

A)  positive 
B)  negative 
C)  zero 
D)  perfect

Question 3

One way to decrease participant bias is to _____.

Accepted Answer

A)  conduct single-blind and double-blind studies 
B)  use the selectivity model 
C)  use placebo controls 
D)  a and c

Exam 1: Introduction and Research Methods

The BEST definition of an independent variable is a _____.

An example of _________ correlation would be the more a mother smokes, the more damage a fetus suffers.

One way to decrease participant bias is to _____.