Types Of Studies

Question 0

Experiment

Answer 0

Manipulation of an independent variable in order to understand its effects on a dependent variable. Identify cause-and-effect relationships.

Question 1

Correlational study

Answer 1

Expresses the relationship between two variables; doesn’t imply causation.

Question 2

Sampling

Answer 2

The process of choosing subjects to study.

Question 3

Sample

Answer 3

A group of subjects selected for study; a subset of a population.

Question 4

Population

Answer 4

A group of people about whom the researcher wants to make conclusions. A sample should be representative of the population.

Question 5

Random assignment

Answer 5

Random placement of subjects into experimental or control groups.

Question 6

Control group

Answer 6

A group not subject to to experimental application.

Question 7

Variables

Answer 7

The things that can vary among subjects.

Question 8

Independent variable

Answer 8

Manipulated by researcher; produces a change in dependent variable.

Question 9

Dependent variable

Answer 9

Measured by the researcher.

Question 10

Confounding variable

Answer 10

Any possible variable (other than the independent variable) that may cause the observed effect.