Chapter 14-17

Question 1

When you have more than one factor, what type of ANOVA should be used?

Answer 1

Factorial ANOVA

Question 2

Results from an ANOVA are placed in what type of table?

Answer 2

Source Table

Question 3

The effect of one factor is called the _____________.

Answer 3

Main Effect

Question 4

When analysis of data reveals differential effects of one factor across levels of another factor, what is this called?

Answer 4

Interaction Effect

Question 5

The number of main effects is equal to:

Answer 5

the number of independent variables

Question 6

You would want to use a factorial ANOVA if you had:

Answer 6

two independent variables

Question 7

What type of ANOVA is used when there is only one type of treatment or grouping factor with more than two levels?

Answer 7

One-way

Question 8

In a source table, the p-value is located in the

Answer 8

Sig column

Question 9

In the following main effect: F(1,9) = 1.67, p = .229, what is 1.67?

Answer 9

Obtained value

Question 10

When plotted on a graph, if the lines representing the effects of two variables cross, you have:

Answer 10

Interaction effect

Question 11

The correlation coefficient is a measure of __________.

Answer 11

Association

Question 12

Measures which occur at the same time are known as what type of measures?

Answer 12

Concurrent

Question 13

What does the statement rxy ≠ 0 represent?

Answer 13

Research Hypothesis

Question 14

Which of the following is another use for correlation coefficients?

Answer 14

estimating reliability

Question 15

Which of the following Greek symbols is used to represent the population estimate for a correlation coefficient?

Answer 15

ρ

Question 16

While you can use the correlation coefficient as its own test statistic, what is the other appropriate test statistic often used to examine the significance of a correlation?

Answer 16

T-test

Question 17

If you posit a relationship between two variables as specifically being either positive only or negative only, what type of test should you use?

Answer 17

One tailed test

Question 18

Measures which occur over a period of time are known as what type?

Answer 18

longitudinal

Question 19

The degrees of freedom for using the correlation coefficient is equal to

Answer 19

n-2

Question 20

What is the name of the Greek letter ρ?

Answer 20

Rho

Question 21

What is another name for a regression line?

Answer 21

Line of best fit

Question 22

What is the distance between each data point and the regression line called?

Answer 22

Error of Estimate

Question 23

Based on the formula for a regression line, what does b represent?

Answer 23

slope of a line

Question 24

Based on the formula for a regression line, what does a represent?

Answer 24

y intercept

Question 25

How is the symbol Y' interpreted?

Answer 25

Y prime

Question 26

Which of the following determines the direction of the regression line?

Answer 26

slope

Question 27

In regression, the criterion variable is also known as the

Answer 27

dependent variable

Question 28

When using two predictor variables, these variables should be

Answer 28

independent

Question 29

A regression equation can be visually represented on a

Answer 29

Scatterplot

Question 30

If the correlation between X and Y is equal to -1.0, what do we know about the prediction of Y by X?

Answer 30

It's perfect

Question 31

Which of the following is the Greek symbol chi?

Answer 31

X

Question 32

Statistics that are not governed by the parameters of the population are referred to as ___________ statistics.

Answer 32

nonparametric

Question 33

Which of the following is the most commonly used nonparametric test?

Answer 33

chi-square

Question 34

A one-sample chi-square is also known as ________.

Answer 34

goodness of fit test

Question 35

Which of the following nonparametric tests is used to determine if the number of occurrences across categories is random?

Answer 35

chi-square

Question 36

The Chi-Square statistic can be interpreted as a test of

Answer 36

differences between observed and expected frequencies

Question 37

The data used for a chi-square test must be

Answer 37

frequencies mutually exclusive

Question 38

A two-sample chi-square is also known as ________.

Answer 38

test of independence

Question 39

Nonparametric statistics are known as _______________.

Answer 39

distribution-free statistics

Question 40

In order to meet the sample assumption associated with parametric statistics, what is the minimum of participants you need?

Answer 40

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