Exam 3

Question 1

The number of times a correlation statistic is shown on the SPSS output

Answer 1

Two

Question 2

This is the final click of the dropdown menu on SPSS to run a correlation analysis

Answer 2

Bivariate

Question 3

This letter represents the correlation statistic

Answer 3

r

Question 4

This is indicated by a positive or negative sign

Answer 4

direction

Question 5

This is represented in the steepness of the slope of the correlation line

Answer 5

strength

Question 6

this hypothesis says there is no relationship between variable

Answer 6

null hypothesis

Question 7

A hypothesis that predicts a relationship between two variables but does not specify the direction of the relationship.

Answer 7

two-tailed hypothesis

Question 8

Example: Temperature and mood are related but we aren’t sure how

Answer 8

two-tailed hypothesis

Question 9

an alternative hypothesis in which the researcher predicts the direction of the expected difference between the groups

Answer 9

one-tailed hypothesis

Question 10

Example: As temperature increases, mood will improve

Answer 10

one-tailed hypothesis

Question 11

This is the name of the shaded part of the distribution

Answer 11

region of rejection

Question 12

A criterion of p < .05 indicates that there is less than a 5% chance that the results were due to this

Answer 12

chance alone

Question 13

Not being able to assign people to live in poverty

Answer 13

ethics

Question 14

Gathering preliminary data for a larger study

Answer 14

pilot study

Question 15

Checking multiple measures of a single construct

Answer 15

assess measurement of validity and reliability

Question 16

A descriptive study is not enough

Answer 16

supplement other designs

Question 17

Applying findings to a large group

Answer 17

increased external validity

Question 18

This is not implied

Answer 18

causation

Question 19

This type is used when you have one interval/ratio variable and one dichotomous variable

Answer 19

point-biserial correlation coefficient

Question 20

This occurs when the top value of a variable is not assessed properly

Answer 20

ceiling effect

Question 21

This is the typical criterion for statistical significance (include the associated letter)

Answer 21

p<.05

Question 22

Describe the strength, direction, and significance: r=.04 p=.06

Answer 22

weak, positive, not significant

Question 23

The predictor variable in an independent samples t-test must be nominal and include this many groups

Answer 23

Two

Question 24

Homogeneity of variance refers to the fact that the ______ of both groups is similar.

Answer 24

standard deviation

Question 25

What do you compare your t-value to in order to determine if there is statistical significance?

Answer 25

t critical value

Question 26

This test is used to determine the homogeneity of variance in SPSS

Answer 26

levene's test

Question 27

You square this as a measure of the effect size for the independent samples

Answer 27

Pearson correlation

Question 28

The inferential name for "sample"

Answer 28

population

Question 29

Inferential statistics are based on this

Answer 29

probability theory

Question 30

Increasing the sample size increases this, which reduces the chance of a Type II Error

Answer 30

power

Question 31

You compare the outcome of your analysis to this

Answer 31

theoretical sampling distribution

Question 32

This occurs when you reject a true null hypothesis

Answer 32

type 1 error