Tricky Topics

Question 1

Cramers Φ

Answer 1

chi-squared test for independence with 2x2

Question 2

Cramers V

Answer 2

chi-squared test for independence with more than 2x2

Question 3

Cohens w

Answer 3

chi-squared goodness of fit

Question 4

Cohens d

Answer 4

• effect size calculation
• looks at the difference between 2 group means
• takes into account variability by using pooled samples SD

Question 5

conceptual hypothesis

Answer 5

the general idea of the hypothesis

Question 6

research hypothesis

Answer 6

operationalizes conceptual hypothesis

Question 7

statistical hypothesis

Answer 7

whether selected parameters of the population are equal or different

Question 8

semi-partial correlation

Answer 8

a measurement of the correlation between 2 variables that remain after controlling for the effects of 1 or more predictor variables

Question 9

r^2

Answer 9

r= correlation coefficient

squaring indicates the proportion of the invariance

Question 10

eta squared

Answer 10

the proportion of total variability of DV that is accounted for by the IV

Question 11

face validity

Answer 11

are measures valid of the face level

Question 12

construct validity

Answer 12

does measure tap into the theoretical concept it is supposed to measure

Question 13

criterion validity

Answer 13

does measure correlate well with other measures of the same behavior

Question 14

content validity

Answer 14

the degree to which it measures all levels of the construct

Question 15

percent of subjects in 3 SD

Answer 15

99.7%

Question 16

percent of subjects in 2 SD

Answer 16

95%

Question 17

percent of subjects in 1 SD

Answer 17

68%

Question 18

for 99% confidence interval z=___

Answer 18

2. 57

- 2.57

Question 19

for a 99% confidence interval, tails cut off at

Answer 19

tails cut off at 0.005

Question 20

for 95% confidence interval z=—

Answer 20

1. 96

- 1.96

Question 21

for a 95% confidence interval, tails cut off at

Answer 21

0.025

Question 22

z score is the

Answer 22

number of SD away from the mean

Question 23

tents of science

Answer 23

Determinism
Empiricism
Replicability
Falsifiability
Parsimony

Question 24

objectives of science

Answer 24

Describe
Predict
Explain
Control

Question 25

ways to minimize extraneous variables

Answer 25

eliminate
constancy
repeated measure
randomization

Question 26

nominal example

Answer 26

gender

Question 27

ordinal example

Answer 27

university rankings

Question 28

ratio example

Answer 28

Income

Question 29

Interval example

Answer 29

temperature