702 Final Exam Review - Research II

Question 1

A p-value of .05 means that we are __% sure our test statistic isn't a result of sampling error

Accepted Answer

95%

Question 2

Which of the following are not the same?

Accepted Answer

Causation and Correlation

Question 3

A factor that does not vary is called a

Accepted Answer

a constant

Question 4

Chi square is used for what level of measurement?

Accepted Answer

Nominal

Question 5

When data analysis involves focusing on one variable at a time, this is called

Accepted Answer

univariate analysis

Question 6

The Mann-Whitney U Requirements are:

Accepted Answer

All of the above

Question 7

Central tendency and variability are important because they:

Accepted Answer

all of the above

Question 8

Factors to consider when selecting a test include:

Accepted Answer

all of the above

Question 9

The null hypothesis for a Chi-Square test of Independence is that there is

Accepted Answer

no difference between what we observe & what we expect

Question 10

What are the two types of research?

Accepted Answer

Qualitative & Quantitative

Question 11

This test compares 2 paired/matched or pre/post test groups on a continuous (scale) measure:

Accepted Answer

Dependent (Paired –Sample) t-test

Question 12

On which axis does the dependent variable typically belong?

Accepted Answer

y-axis

Question 13

In a hypothesis, the outcome or result is know as the

Accepted Answer

dependent variable

Question 14

When data analysis involves focusing on 3 plus variables and their relationship, this is called

Accepted Answer

multivariate analysis

Question 15

The Mann-Whitney U test compares the ______ of (#?) groups to see if there's a sig. difference.

Accepted Answer

median; 2 groups

Question 16

Tests that compare one group to a theoretical value or population parameter include:

Accepted Answer

Chi Square Goodness of Fit & One-Sample t-test

Question 17

Which statistical test is appropriate for nominal data?

Accepted Answer

Chi Square

Question 18

Ha: Cats who get regular veterinary care are friendlier than cats without healthcare access.

Accepted Answer

The IV is level of healthcare.

Question 19

Specifying exactly how a variable will be measured is called

Accepted Answer

operationalization

Question 20

The Kruskal-Wallis test compares the ____ of _(#)_ groups to see if there is a sig. difference.

Accepted Answer

median; 3 groups

Question 21

This test determines whether the means of 3 or more groups are significantly different.

Accepted Answer

One-Way ANOVA

Question 22

The natural tendency of all samples to differ from the population they were drawn from is:

Accepted Answer

sampling error

Question 23

In a hypothesis, a predictor or antecedent condition is called the

Accepted Answer

independent variable

Question 24

Ha: Cats who get regular veterinary care are friendlier than cats without healthcare access.

Accepted Answer

In the hypothesis above, the DV is friendliness.

Question 25

When data analysis involves focusing on two variables and their relationship, this is called

Accepted Answer

bivariate analysis

Question 26

Before doing this test, we do a scatterplot to insure a linear relationship between variables:

Accepted Answer

Pearson's R Correlation

Question 27

Which is a parametric test?

Accepted Answer

t-test

Question 28

A p-value of .01 means that ________ our test statistic would be the result of sampling error.

Accepted Answer

one time out of 100

Question 29

Consistency of the measuring instrument increases

Accepted Answer

reliability

Question 30

No correlation in a scattergram would look like:

Accepted Answer

A bunch of dots with no direction

Question 31

What are the two types of statistics?

Accepted Answer

Parametric & Non-parametric

Question 32

A prediction of the relationship between variables is known as a

Accepted Answer

alternative hypothesis

Question 33

The authenticity of the measuring instrument is described by the term,

Accepted Answer

validity

Question 34

A research hypothesis (also called alternative hypothesis or Ha) can state:

Accepted Answer

A & B above but not C

Question 35

This is a non-parametric test that compares 2 independent groups

Accepted Answer

Mann-Whitney U

Question 36

Ha: Rapid police response to calls increases victim satisfaction. The null hypothesis is:

Accepted Answer

There's no relationship between response time & satisfaction

Question 37

This test determines whether the medians of 3 or more groups are significantly different.

Accepted Answer

Kruskal-Wallis H

Question 38

The t-test requires:

Accepted Answer

All of the above.

Question 39

This is a parametric test:

Accepted Answer

Independent Samples t-test

Question 40

A survey of 800 adults revealed that 28% gave to food pantry in the last 6 months. This is a:

Accepted Answer

descriptive statistic

Question 41

This is a non-parametric test:

Accepted Answer

Chi Square test of independence

Question 42

A negative correlation in a scattergram would look like:

Accepted Answer

A diagonal line going down from left to right

Question 43

One measure of variability or dispersion is called

Accepted Answer

standard deviation

Question 44

Used to display the median and dispersion of a scale (continuous) variable within a data set

Accepted Answer

box plot

Question 45

The Chi-Square Goodness of Fit test looks at

Accepted Answer

one nominal variable and population parameters

Question 46

Which data type is required for Pearson’s Correlation?

Accepted Answer

two or more variables, both measured continuously

Question 47

This test determines whether there is a significant correlation between 2 continuous variables:

Accepted Answer

Pearson’s r Correlation

Question 48

A factor or concept that takes on two or more categories is a

Accepted Answer

variable

Question 49

Ha: Rapid police response to calls increases victim satisfaction. The IV is:

Accepted Answer

response time

Question 50

The number of times an attribute, value, or category occurs is know as a

Accepted Answer

frequency

Question 51

The probability that the pattern of data in a sample could be produced by chance is shown by

Accepted Answer

the p-value

Question 52

Parametric tests are used to (check all that apply)

Accepted Answer

make inferences about population parameters, analyze data, test null hypotheses

Question 53

Ha: Rapid police response to calls increases victim satisfaction. The DV is:

Accepted Answer

degree of victim satisfaction

Question 54

Which has less power and fewer assumptions?

Accepted Answer

Nonparametric tests

Question 55

The number of ways in which variables are free to vary, is used to calculate:

Accepted Answer

degrees of freedom

Question 56

Ha: Cats who get regular veterinary care are friendlier than cats without healthcare access.

Accepted Answer

The constant is cats.

Question 57

A positive correlation in a scattergram would look like:

Accepted Answer

A diagonal line going up from left to right

Question 58

Parametric statistics are used to:

Accepted Answer

Make inferences about the population parameters.

Question 59

Ha: Rapid police response to calls increases victim satisfaction. This hypothesis is:

Accepted Answer

directional

Question 60

This test determines whether there is a significant association between 2+ nominal variables.

Accepted Answer

Chi-Square Test of Independence

702 Final Exam Review - Research II

Questions 60

702 Final Exam Review - Research II

Questions 60