Flashcards in Ch. 15 Deck (23):

1

## Integrator reliability

### Two or more individuals should make an observation or one observer should examine the behavior on more than one occasion

2

## Validity

### Measure accurately = does the instrument measure what it claims to measure?

3

## Content validity

### Criterion related, construct

4

## Concurrent validity

### Degree of correlation between two measures

5

## Predictive validity

### Measure of concept and some future measure of the concept

6

## Face validity

### Refers to expert verification that the instrument measures correctly

7

## Construct validity

### Test measures a theoretical construct or trait

8

## Divergent validity

### Differentiates one construct from others that are similar

9

## Reliability

### Measure consistently

10

## Stability

### Homogeneity or internal consistency, equivalence

11

## Reliability coefficient

### Measures the relationship between error variance, true variance, and the observed score

12

## Parallel reliability

### Using two comparable forms of an instrument to test the same concept

13

## Integrator reliability

###
Two or more investigators are collecting data

Kappa level of 0.9 is good

14

## A measure can be considered to be reliable while...

### Unlikely found to be valid

15

## Error variance

### The differences in scores between actual measurement of behavioral changes and thee extent of variability in test scores

16

## Chance error

### Variability of scores due to random confounding variables

17

## Test score

### Error variance plus the true score

18

## Constant error

### Answering in a socially desirable way (validity effected)

19

## Chronbachs alpha

###
Most common test to study validity

Measures the homogeneity of an instrument with a like-type format

20

## Split half

### Provides a measure of consistency in terms of sampling the content

21

## KR-20

###
Estimate of homogeneity used for instruments that have a dischotomous response format (yes/no)

Coefficient of 0.1 shows no correlation among the error variance, true variance or observed variance

22

## Equivalence

###
Consistency or agreement among observers using the same measurement instruments

Parallels or alternate form

23