Question 1

The results are statistically significant.

Accepted Answer

A) True 
 B)False  True

Question 2

Half the cases are above the median and half the cases are below the median.

Accepted Answer

A) True 
 B)False  True

Question 3

Which of the following illustrates a grouped data frequency distribution?

Accepted Answer

A)  Thirty-six students are enrolled in introductory statistics, section A. 
B)  Five new students have been accepted on the editorial staff of their school paper. Two of the students are 18 years of age, one is 19 years, and two are 21 years of age. 
C)  Of the 20 female students living in a housing complex, 10 are under 20 years of age, one is between 20 and 25 years, seven are between 26 and 30 years, and two are above 30 years. 
D)  all of these. 
A)  Thirty-six students are enrolled in introductory statistics, section A. 
B)  Five new students have been accepted on the editorial staff of their school paper. Two of the students are 18 years of age, one is 19 years, and two are 21 years of age. 
C)  Of the 20 female students living in a housing complex, 10 are under 20 years of age, one is between 20 and 25 years, seven are between 26 and 30 years, and two are above 30 years. 
D)  all of these. C

Question 4

A bivariate table is read by comparing the independent variable
subgroups with one another in terms of a given attribute of the
dependent variable.

Accepted Answer

A) True 
 B)False

Question 5

Suppose a study reports that the average number of times that control group participants got drunk during the year was five.What is appropriate to conclude?

Accepted Answer

A)  The typical control group participant got drunk five times. 
B)  Most control group participants got drunk five times. 
C)  It is conceivable that most of the control group participants got drunk less than five times or more than five times. 
D)  The typical control group participant got drunk 5 times, and most control group participants got drunk five times. 
A)  The typical control group participant got drunk five times. 
B)  Most control group participants got drunk five times. 
C)  It is conceivable that most of the control group participants got drunk less than five times or more than five times. 
D)  The typical control group participant got drunk 5 times, and most control group participants got drunk five times.

Question 6

The results certainly are substantively significant.

Accepted Answer

A) True 
 B)False

Question 7

The most frequent attribute,in either grouped or ungrouped data,is the

Accepted Answer

A)  mean. 
B)  median. 
C)  mode. 
D)  range. 
E)  marginal. 
A)  mean. 
B)  median. 
C)  mode. 
D)  range. 
E)  marginal.

Question 8

A Cohen's d effect size of less than 1.0 is considered to be weak.

Accepted Answer

A) True 
 B)False

Question 9

In an evaluation of an intervention that seeks to increase self-esteem scores,if the mean of the experimental group is 60,the mean of the control group is 50,and the standard deviation of the control group is 5,the Cohen's d effect size is:

Accepted Answer

A)  5 
B)  2 
C)  10 
D)  0.10 
E)  60 
A)  5 
B)  2 
C)  10 
D)  0.10 
E)  60

Question 10

The table shows that regardless of type of illness,recipients of social work services were more likely to die in the hospital.

Accepted Answer

A) True 
 B)False

Question 11

Given the following values,the median is
8,12,9,15,17,11,13,14,7

Accepted Answer

A)  12 
B)  17 
C)  4.5 
D)  5 
A)  12 
B)  17 
C)  4.5 
D)  5

Question 12

Whereas univariate analysis and subgroup comparisons focus on the descriptions of the people under study,the focus of bivariate analysis is on the relationships among the variables themselves.

Accepted Answer

A) True 
 B)False

Question 13

Suppose 100 clients referred for substance abuse problems receive new Intervention A and another receive treatment as usual (TAU).Suppose further that 20% of the recipients of Intervention A recidivate as compared to 50% of the TAU recipients.The odds ratio would be:

Accepted Answer

A)  2.5. 
B)  4.0. 
C)  .40. 
D)  .20. 
A)  2.5. 
B)  4.0. 
C)  .40. 
D)  .20.

Question 14

A measure of dispersion describes

Accepted Answer

A)  where the data are clustered. 
B)  which data are the most important. 
C)  how spread out the data are. 
D)  all of the above. 
A)  where the data are clustered. 
B)  which data are the most important. 
C)  how spread out the data are. 
D)  all of the above.

Question 15

The variable number of children is at the nominal level of measurement

Accepted Answer

A) True 
 B)False

Question 16

Your colleague conducts a methodologically flawless randomized experiment with a small sample and finds that 70 percent of the clients treated with intervention A had a successful outcome,while only 60 percent of the clients in the control group had a successful outcome.Based on the difference in these percentages,she concludes that intervention A is effective.Would you agree with her? Explain your answer.

Accepted Answer

While the results of the experiment may

Question 17

Define and explain how to calculate odds ratios and risk ratios.

Accepted Answer

Odds ratios and risk ratios are both mea

Question 18

The Cohen's d effect size statistic is +1.0.

Accepted Answer

A) True 
 B)False

Question 19

The mean or median can be used to describe the central tendency of the variable "ethnicity."

Accepted Answer

A) True 
 B)False

Question 20

A research article reports that clients who received Intervention A had a 30% recidivism rate,while clients who received Intervention B had a 40% recidivism rate.What can be inferred from these statistics?

Accepted Answer

A)  Intervention A is more effective than Intervention B. 
B)  The difference in recidivism rates was due to chance. 
C)  The difference in recidivism rates was NOT due to chance. 
D)  None of these. 
A)  Intervention A is more effective than Intervention B. 
B)  The difference in recidivism rates was due to chance. 
C)  The difference in recidivism rates was NOT due to chance. 
D)  None of these.

The results are statistically significant.

Half the cases are above the median and half the cases are below the median.

Which of the following illustrates a grouped data frequency distribution?

A bivariate table is read by comparing the independent variable subgroups with one another in terms of a given attribute of the dependent variable.

Suppose a study reports that the average number of times that control group participants got drunk during the year was five.What is appropriate to conclude?

The results certainly are substantively significant.

The most frequent attribute,in either grouped or ungrouped data,is the

A Cohen's d effect size of less than 1.0 is considered to be weak.

In an evaluation of an intervention that seeks to increase self-esteem scores,if the mean of the experimental group is 60,the mean of the control group is 50,and the standard deviation of the control group is 5,the Cohen's d effect size is:

The table shows that regardless of type of illness,recipients of social work services were more likely to die in the hospital.

Given the following values,the median is 8,12,9,15,17,11,13,14,7

Whereas univariate analysis and subgroup comparisons focus on the descriptions of the people under study,the focus of bivariate analysis is on the relationships among the variables themselves.

Suppose 100 clients referred for substance abuse problems receive new Intervention A and another receive treatment as usual (TAU).Suppose further that 20% of the recipients of Intervention A recidivate as compared to 50% of the TAU recipients.The odds ratio would be:

A measure of dispersion describes

The variable number of children is at the nominal level of measurement

Define and explain how to calculate odds ratios and risk ratios.

The Cohen's d effect size statistic is +1.0.

The mean or median can be used to describe the central tendency of the variable "ethnicity."

A research article reports that clients who received Intervention A had a 30% recidivism rate,while clients who received Intervention B had a 40% recidivism rate.What can be inferred from these statistics?

Why Study Research

Evidence-Based Practice

Quantitative, qualitative, and Mixed Methods of Inquiry

Factors Influencing the Research Process

Ethical Issues in Social Work Research

Culturally Competent Research

Problem Formulation

Measurement in Quantitative and Qualitative Inquiry

Quantitative and Qualitative Measurement Instruments

Surveys

Sampling: Quantitative and Qualitative Approaches

Experiments and Quasi-Experiments

Single-Case Evaluation Designs

Program Evaluation

Additional Methods in Qualitative Inquiry

Analyzing Available Records: Quantitative and Qualitative Methods

Qualitative Data Analysis

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Exam 17: Quantitative Data Analysis

The results are statistically significant.

Half the cases are above the median and half the cases are below the median.

Which of the following illustrates a grouped data frequency distribution?

A bivariate table is read by comparing the independent variable subgroups with one another in terms of a given attribute of the dependent variable.

Suppose a study reports that the average number of times that control group participants got drunk during the year was five.What is appropriate to conclude?

The results certainly are substantively significant.

The most frequent attribute,in either grouped or ungrouped data,is the

A Cohen's d effect size of less than 1.0 is considered to be weak.

In an evaluation of an intervention that seeks to increase self-esteem scores,if the mean of the experimental group is 60,the mean of the control group is 50,and the standard deviation of the control group is 5,the Cohen's d effect size is:

The table shows that regardless of type of illness,recipients of social work services were more likely to die in the hospital.

Given the following values,the median is 8,12,9,15,17,11,13,14,7

Whereas univariate analysis and subgroup comparisons focus on the descriptions of the people under study,the focus of bivariate analysis is on the relationships among the variables themselves.

Suppose 100 clients referred for substance abuse problems receive new Intervention A and another receive treatment as usual (TAU).Suppose further that 20% of the recipients of Intervention A recidivate as compared to 50% of the TAU recipients.The odds ratio would be:

A measure of dispersion describes

The variable number of children is at the nominal level of measurement

Define and explain how to calculate odds ratios and risk ratios.

The Cohen's d effect size statistic is +1.0.

The mean or median can be used to describe the central tendency of the variable "ethnicity."

A research article reports that clients who received Intervention A had a 30% recidivism rate,while clients who received Intervention B had a 40% recidivism rate.What can be inferred from these statistics?

Why Study Research

Evidence-Based Practice

Quantitative, qualitative, and Mixed Methods of Inquiry

Factors Influencing the Research Process

Ethical Issues in Social Work Research

Culturally Competent Research

Problem Formulation

Measurement in Quantitative and Qualitative Inquiry

Quantitative and Qualitative Measurement Instruments

Surveys

Sampling: Quantitative and Qualitative Approaches

Experiments and Quasi-Experiments

Single-Case Evaluation Designs

Program Evaluation

Additional Methods in Qualitative Inquiry

Analyzing Available Records: Quantitative and Qualitative Methods

Qualitative Data Analysis

Filters