2-1

Question 1

Sample

Answer 1

A small group of participants, out of the total number Available, that a researcher studies

Question 2

Naturalistic observation

Answer 2

Research method in which the psychologist observes the subject in a natural setting without interfering

Question 3

Case study

Answer 3

Research method that involves an intensive investigation of one or more participants

Question 4

Survey

Answer 4

Research method in which information is obtained by asking many individuals a fixed set of questions

Question 5

Longitudinal study

Answer 5

Research method in which data are collected about a group of participants over a number of years to assess how certain characteristics change or remain the same during development

Question 6

Cross section study

Answer 6

Research method in which data are collected from groups of participants of different ages and compared so that conclusions can be drawn about differences due to age

Question 7

Correlation

Answer 7

The measure of a relation ship between two variables or sets of data

Question 8

Hypothesis

Answer 8

An educated guess about the relationship between two variables

Question 9

Variable

Answer 9

Any factor that is capable of change

Question 10

Experimental group

Answer 10

The group to which an independent variable is applied

Question 11

Control group

Answer 11

The group that is tested in the same way as the experimental group except that the experimental treatment (the independent variable) is not applied