PSY230 Final

Question 1

Null hypothesis

Answer 1

no relationship between the populations ad the sample reflects the only error

Question 2

Type 1 error-

Answer 2

false positive results are statistically significant yet no real effect

Question 3

Type 2 error-

Answer 3

false negative concludes that their results are not significant

Question 4

Sample-

Answer 4

Very small portion of the population the researcher wants to study

Question 5

Random-

Answer 5

the sample is recruited by population subgroups

Question 6

Convenience-

Answer 6

sample consists of people who happen to be easily available and willing to participate

Question 7

Cluster-

Answer 7

larger clusters of people are randomly sampled and then people in those clusters are randomly sampled

Question 8

Stratification-

Answer 8

basic variabilities within a population (hit a quota)(cohort)

Question 9

Population-

Answer 9

Very big group of people who researchers are drawing conclusions and samples from

Question 10

Reliability-

Answer 10

consistency of a measure

Question 11

Test Retest-

Answer 11

researcher measure a construct that they assume to be consistent across time

Question 12

Split Half-

Answer 12

score from splitting the items into two examining the relationship of them to find the consistency of a measure

Question 13

Interader-

Answer 13

extent to which different observers are consistent in their judgment

Question 14

Validity-

Answer 14

test measures what it purports to measure

Question 15

Construct-

Answer 15

variables that represent an individual’s mental state or experience, often observable

Question 16

Convergent-

Answer 16

criterion validity where new measures are correlated with existing measures of same construct

Question 17

Criterion-

Answer 17

peoples scores are correlated with other variables

Question 18

Divergent

Question 19

Content-

Answer 19

with a measure reflects all aspects of the construct of interest

Question 20

Primary data

Question 21

Secondary data

Question 22

Replication

Question 23

Statistics-

Answer 23

Bunch of math using logic analysis to draw conclusions

Question 24

Mistake=

Answer 24

Random error

Question 25

Scales of measurement (NOIR)

Answer 25

Nominal, Ordinal, Interval, Ratio

Question 26

Nominal-

Answer 26

A measurement used for categorical variables and involves assigning scores that are category labels.

Question 27

Ordanil-

Answer 27

A measurement that involves assigning scores so that they represent the rank order of the individuals.

Question 28

Interval-

Answer 28

A measurement that involves assigning scores using numerical scales in which intervals have the same interpretation throughout.

Question 29

Ratio-

Answer 29

A measurement that involves assigning scores in such a way that there is a true zero point that represents the complete absence of the quantity.

Question 30

Measurements of control

Question 31

Inferential vs dose st

Question 32

Distributions-

Answer 32

the way scores are spread across levels of a variable

Question 33

Normal-

Answer 33

data in the middle

Question 34

Skewed-

Answer 34

data is shifted one way with a long tail going the other direction

Question 35

Univariable analysis-

Answer 35

1 variable

Question 36

Correlation coefficient-

Answer 36

strength and direction of the two variables relationships

Question 37

Positive-

Answer 37

plus 1

Question 38

Negative-

Answer 38

negative 1

Question 39

Coding-

Answer 39

structured observation where observers use guidelines to “code” behaviors, assigning them to a category

Question 40

Hawthorne effect-

Answer 40

just being observed makes people perform differently and better

Question 41

Durkheim-

Answer 41

one of the first research monographs (on suicide)

Question 42

Data scraping-

Answer 42

taking information from a text and important into a research program

Question 43

Blinding -

Answer 43

if they don’t know they can bias their judgment

Question 44

Power and sample size-

Answer 44

bigger sample more information you learned greater options, smaller sample less information less options

Question 45

Qualitiatvie

Question 46

Quantitative

Question 47

Peer review-

Answer 47

processes of reviewing voluntary with others

Question 48

Standardization-

Answer 48

repetition/ set rules to follow/ keep the same