Statistics

Question 1

Quasi-experiment

Answer 1

Research manipulates IV but subjects are not assigned randomly

Question 2

Stratified random sampling

Answer 2

Assuring each subgroup is randomly sampled in proportion to size

Question 3

Subjects Designs

Answer 3

1. Between subjects - each subject is exposed to 1 level of IV
2. Matched subjects - match subjects and assign 1 part of the pair to each group. Ensures equality of groups
3. Within subjects - each subject is exposed to both levels of IV

Question 4

Nonequivalent Group Design

Answer 4

Control group is not necessarily similar to experimental group because random assignment not used.
Ex- try out a new reading method. New method for Mrs. Brown's class and placebo for Mrs. Johnson

Question 5

Demand characteristics

Answer 5

Cues that suggest to subjects what the researcher expects of them

Question 6

Hawthorne Effect

Answer 6

Behave differently if they know they’re being observed

Question 7

Variance

Answer 7

Sd squared

Question 8

Z score

Answer 8

Score-Mean/sd

Question 9

T-Score

Answer 9

Mean is 50 and Sd is 10

Question 10

Factor Analysis

Answer 10

Account for interrelationships found among various variables by seeing how the groups of variables “hang together”

Question 11

ANOVA

Answer 11

More than 2 amounts

Question 12

Chi-Squared

Answer 12

Categorical data

Question 13

Norm-Referenced Testing

Answer 13

How an individual performs in relation to others

Question 14

Domain-Referenced Testing

Answer 14

What the test taker knows about a specified content domain

Question 15

Reliability

Answer 15

Consistency within the test

Question 16

Test reliability

Answer 16

Look at correlation between…

1. Test-retest: A, A
2. Alternate-form: A, B
3. Split-half: 1/2A, 1/2A

Question 17

Standard Error Measurement (SEM)

Answer 17

Index of how much we expect a person’s score to vary from the score the person is capable of. Want 0.

Question 18

Validity

Answer 18

Extent to which the test measures what it’s supposed to measure

Question 19

Interval vs. Ratio

Answer 19

Equal intervals. Ratio has a true zero point.

Question 20

Aptitude Test

Answer 20

Predict what someone can accomplish through training

Question 21

Achievement Test

Answer 21

Test what someone already knows

Question 22

Adaptive Test

Answer 22

Computerized, gives harder questions if you keep getting questions right

Question 23

Ratio IQ

Answer 23

Mental Age/Chron Age x 100

Always will decline with age

Question 24

Deviation IQ

Answer 24

How well a person performed on an IQ test relative to same-age peers

Question 25

Wechsler Tests

Answer 25

Measures verbal and performance.

1. Preschool and Primary Scale of Intelligence (preschool)
2. Intelligence Scale for Children (5-16)
3. Adult Intelligence Scale (16+)

Question 26

Empirical Criterion-Keying Approach

Answer 26

Questions and retained those that differed between clinical and non-clinical people.

Question 27

California Psychological Inventory (CPI)

Answer 27

20 scales to assess test-taking attitudes

Question 28

Blakey Pictures

Answer 28

Pictures of dog doing things and tell stories about it

Question 29

Barnum Effect

Answer 29

People accept and approve of the interpretation of their personality inventory that they are given

Question 30

Strong-Campbell Interest Inventory

Answer 30

For career.

RIASEC system.

Question 31

Sequential cohort study

Answer 31

Longitudinal and cross-sectional