Question 1

The closer the coefficient is to ______, the stronger the relationship is between the two variables.

Accepted Answer

A)  1 and 10 
B)  +1 and −1 
C)  1 and −10 
D)  +1 and 1 
A)  1 and 10 
B)  +1 and −1 
C)  1 and −10 
D)  +1 and 1 B

Question 2

Explain the differences in Type I and Type II errors using pregnancy test results as an example.

Accepted Answer

Answers may include: When you commit a Type I error, you are rejecting the null when the null hypothesis is true. In terms of pregnancy results, you are getting a false positive result (saying someone is pregnant when they are actually not pregnant). When you commit a Type II error, you are accepting the null when the null hypothesis is false. In terms of pregnancy results, you are getting a false negative result (saying someone is not pregnant when they actually are pregnant).

Question 3

Students in a social work statistics class took a mid-term exam and received the following scores out of 100 total points: 75, 80, 95, 60, 80, 90, 90, 90, and 75
For these data, calculate the mean, median, mode, and range.

Accepted Answer

Answers will include: Mean: 81.6666667, Median: 80, Mode: 90, and Range: 35.

Question 4

If you are subtracting the lowest value in a variable distribution from the highest value, you are calculating the variable's ______.

Accepted Answer

A)  mean 
B)  mode 
C)  median 
D)  range 
A)  mean 
B)  mode 
C)  median 
D)  range

Question 5

The point at which half of a variable's distribution is above and below the average refers to the ______.

Accepted Answer

A)  mean 
B)  mode 
C)  median 
D)  range 
A)  mean 
B)  mode 
C)  median 
D)  range

Question 6

The mean and the median of a variable's distribution are always the same.

Accepted Answer

A) True 
 B)False

Question 7

When comparing the different scores of an intervention on two different groups, it is helpful to determine the ______.

Accepted Answer

A)  frequency distribution 
B)  effect size 
C)  measures of central tendency 
D)  variability 
A)  frequency distribution 
B)  effect size 
C)  measures of central tendency 
D)  variability

Question 8

Descriptive univariate analyses are used to ______ the data related to a specific variable of interest.

Accepted Answer

A)  gather 
B)  compare 
C)  describe 
A)  gather 
B)  compare 
C)  describe

Question 9

The absence of multicollinearity refers to independent variables being too highly correlated.

Accepted Answer

A) True 
 B)False

Question 10

When is a MANOVA analysis appropriate to use?

Accepted Answer

Answer should include having o

Question 11

A(n) ______ is a data point within your data that does not follow the usual pattern of all the other data points in your data.

Accepted Answer

A)  variable point 
B)  outlier 
C)  deviation 
D)  skewed distribution 
A)  variable point 
B)  outlier 
C)  deviation 
D)  skewed distribution

Question 12

When using multiple regression analysis, what can a researcher do if the relationship between each independent variable and the dependent variable is not linear in multiple regression analysis?

Accepted Answer

A)  conduct a nonlinear regression analysis 
B)  assess a single construct 
C)  delete one of the independent variables 
D)  conduct an outlier test 
A)  conduct a nonlinear regression analysis 
B)  assess a single construct 
C)  delete one of the independent variables 
D)  conduct an outlier test

Question 13

Conducting descriptive univariate analyses is the ______ step in any data analysis plan.

Accepted Answer

A)  first 
B)  second 
C)  third 
D)  fourth 
A)  first 
B)  second 
C)  third 
D)  fourth

Question 14

A ______ shows the researcher the number of observations in each category of the variable of interest.

Accepted Answer

A)  frequency distribution 
B)  measure of group differences 
C)  measure of central tendency 
D)  variability frequency 
A)  frequency distribution 
B)  measure of group differences 
C)  measure of central tendency 
D)  variability frequency

Question 15

An assumption for indepedent-sample t-Tests is that the variances for the dependent variable should be equal within each group of the independent variable, when the standard deviation for each group is approximately double.

Accepted Answer

A) True 
 B)False

Question 16

In a frequency distribution, the variable being described is measured at which level of measurement?

Accepted Answer

A)  numerical 
B)  categorial 
C)  ratio 
D)  interval 
A)  numerical 
B)  categorial 
C)  ratio 
D)  interval

Question 17

When a linear relationship is shown in SPSS, drawing a line between the dots on a scatterplot should form what?

Accepted Answer

A)  a bell-curve 
B)  a scattered set of dots 
C)  a straight line 
D)  an incline, peak point, then a decline 
A)  a bell-curve 
B)  a scattered set of dots 
C)  a straight line 
D)  an incline, peak point, then a decline

Question 18

Which of the following is the most frequently used confidence level?

Accepted Answer

A)  25% 
B)  45% 
C)  75% 
D)  95% 
A)  25% 
B)  45% 
C)  75% 
D)  95%

Question 19

At least how many assumptions of multiple regression analysis must be met to produce valid results?

Accepted Answer

A)  three 
B)  five 
C)  six 
D)  nine 
A)  three 
B)  five 
C)  six 
D)  nine

Question 20

If the data are to be displayed in a contingency table in SPSS, each cell must have at least a frequency of ______.

Accepted Answer

A)  1 
B)  5 
C)  10 
D)  15 
A)  1 
B)  5 
C)  10 
D)  15

The closer the coefficient is to ______, the stronger the relationship is between the two variables.

Explain the differences in Type I and Type II errors using pregnancy test results as an example.

Students in a social work statistics class took a mid-term exam and received the following scores out of 100 total points: 75, 80, 95, 60, 80, 90, 90, 90, and 75 For these data, calculate the mean, median, mode, and range.

If you are subtracting the lowest value in a variable distribution from the highest value, you are calculating the variable's ______.

The point at which half of a variable's distribution is above and below the average refers to the ______.

The mean and the median of a variable's distribution are always the same.

When comparing the different scores of an intervention on two different groups, it is helpful to determine the ______.

Descriptive univariate analyses are used to ______ the data related to a specific variable of interest.

The absence of multicollinearity refers to independent variables being too highly correlated.

When is a MANOVA analysis appropriate to use?

A(n) ______ is a data point within your data that does not follow the usual pattern of all the other data points in your data.

When using multiple regression analysis, what can a researcher do if the relationship between each independent variable and the dependent variable is not linear in multiple regression analysis?

Conducting descriptive univariate analyses is the ______ step in any data analysis plan.

A ______ shows the researcher the number of observations in each category of the variable of interest.

An assumption for indepedent-sample t-Tests is that the variances for the dependent variable should be equal within each group of the independent variable, when the standard deviation for each group is approximately double.

In a frequency distribution, the variable being described is measured at which level of measurement?

When a linear relationship is shown in SPSS, drawing a line between the dots on a scatterplot should form what?

Which of the following is the most frequently used confidence level?

At least how many assumptions of multiple regression analysis must be met to produce valid results?

If the data are to be displayed in a contingency table in SPSS, each cell must have at least a frequency of ______.

Evidence-Based Practice

Research Ethics

The Research Process

Problem Formulation

Measurement

Experimental Design

Quasi-Experimental Design

Qualitative Research

Mixed-Methods Research

Observational Research

Sampling

Survey Research

Qualitative Data Analysis

Single-Case Design Evaluation

Program Evaluation

Filters

Exam 13: Quantitative Data Analysis

The closer the coefficient is to ______, the stronger the relationship is between the two variables.

Explain the differences in Type I and Type II errors using pregnancy test results as an example.

Students in a social work statistics class took a mid-term exam and received the following scores out of 100 total points: 75, 80, 95, 60, 80, 90, 90, 90, and 75 For these data, calculate the mean, median, mode, and range.

If you are subtracting the lowest value in a variable distribution from the highest value, you are calculating the variable's ______.

The point at which half of a variable's distribution is above and below the average refers to the ______.

The mean and the median of a variable's distribution are always the same.

When comparing the different scores of an intervention on two different groups, it is helpful to determine the ______.

Descriptive univariate analyses are used to ______ the data related to a specific variable of interest.

The absence of multicollinearity refers to independent variables being too highly correlated.

When is a MANOVA analysis appropriate to use?

A(n) ______ is a data point within your data that does not follow the usual pattern of all the other data points in your data.

When using multiple regression analysis, what can a researcher do if the relationship between each independent variable and the dependent variable is not linear in multiple regression analysis?

Conducting descriptive univariate analyses is the ______ step in any data analysis plan.

A ______ shows the researcher the number of observations in each category of the variable of interest.

An assumption for indepedent-sample t-Tests is that the variances for the dependent variable should be equal within each group of the independent variable, when the standard deviation for each group is approximately double.

In a frequency distribution, the variable being described is measured at which level of measurement?

When a linear relationship is shown in SPSS, drawing a line between the dots on a scatterplot should form what?

Which of the following is the most frequently used confidence level?

At least how many assumptions of multiple regression analysis must be met to produce valid results?

If the data are to be displayed in a contingency table in SPSS, each cell must have at least a frequency of ______.

Evidence-Based Practice

Research Ethics

The Research Process

Problem Formulation

Measurement

Experimental Design

Quasi-Experimental Design

Qualitative Research

Mixed-Methods Research

Observational Research

Sampling

Survey Research

Qualitative Data Analysis

Single-Case Design Evaluation

Program Evaluation

Filters