Flashcards in Chapter 6 Practice Questions Deck (20)

Loading flashcards...

1

## What does correlational research assess?

### The strength of relationships among variables.

2

## What does differential research assess?

### It assesses differences between two or more groups that are differentiated based upon a preexising variable.

3

## What does correlations do?

### Correlations quantify the strength and direction of relationships and can be used for predicting one variable from another variable.

4

## Can correlational research determine casuality?

### No

5

## Can correlational rsearch prove a theory?

### No but it can negate one.

6

## What type of variable does differential research use?

### A nonmanipulated independent variable.

7

## What are artefacts?

### they are apparently effects of independent variables that are not actually the result of other variables, not properly controlled.

8

## How is differential research structurally similar to experimental research?

### We compare groups on a dependent measure.

9

## How are differential research conceptually similar to correlational?

### We measure two variables and look at the relationship between the two variables.

10

## What is higher in constraint; differential or correlational?

### Differential

11

## why is differential higher constraint than correlational?

### Procedures available that increase the confidence of conclusions.

12

## What are experimenter expectancy?

### It is the tendency of investigators to see what they expect to see

13

## What is experimenter reactivity?

### It is the tendency of investigators to influence the behaviours of participants.

14

## What are moderator variables?

### Moderator variables modify the relationship between other variables.

15

## What is the coefficient of determination?

### The square of the correlation and it indicates the proprtion of variability in one measure hat can be predicted knowing another measure.

16

## When should differential research be used?

### Differential research should be used whenever we want to kstatements now whether groups that are formed based on a preexisting variable are different to one another.

17

## Why is it important to develop problem statements that focus on groups that differ on only a single variable?

### Unless groups only a single variable, it is impssible to determine which variable might have accounted for any observed group differences.

18

## What is a nonmanipulated independent variable?

### A non manipulated variable is a variable that existed prior to the study. It is used to assign participants to different roups.

19

## Why is careful selection of the control groups so critical in research?

### Careful selection of the control groups can minimise confounding by forming groups that difffer on only a single variable.

20