Flashcards in Chapter 12 Glossary Deck (13)

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1

## What is ANOVA?

### Statistical procedure for evaluating mean differences between two or more groups, which statistically removes unwanted variance in the dependent variable and hence increases statistical power.

2

## What is assent?

### Agreeing to participate in a study when you are under the legal age to give consent or are considered legally unable to give consent due to severe developmental disability or emotional disorder.

3

## What are between-subjects factors?

### Independent variables in which participants are assigned to conditions in such a way that each participant appears in only one condition.

4

## What are column means?

### In factorial designs, one factor is usually illustrated as separate columns of data, in which each column represents a different level of the factor.

5

## What is a delayed-treatment control group?

### A group of people in a treatment study who initially serve as a no-treatment control group with the understanding that they will receive the treatment later.

6

## What is design notation?

### A way indicating the number of independent variables and the number of levels of each independent variable in a factorial design.

7

## What are factorial designs?

### Factorial designs Designs employing more than one independent variable and thus allowing researchers to identify interactive effects independent variables.

8

## What are factors?

### Each independent variable in a factorial design.

9

## What are interaction effects?

### Combined effect of two or more independent variables, such that the effect of one independent variable differs depending on the level of the other independent variable.

10

## What are main effects?

### The individual effects of the independent variables in a factorial study.

11

## What are manipulated factors?

### Independent variables in a factorial design, in which participants are randomly assigned to the different levels of the independent variable.

12

## What are mixed designs?

### Factorial design in which at least one of the factors is a between-subjects factor and at least one of the factors is a within-subjects factor.

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