Question 1

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.

Question 2

The substantive significance of a relationship is always automatically indicated by the strength of the relationship.

Accepted Answer

A) True 
 B)False

Question 3

An experiment evaluating the effectiveness of an intervention for improving attitudes about something finds that the mean posttest score of the experimental group is 70, which is better than the control group’s mean posttest score of 65. The significance level is .05, and the p value is .01. The standard deviation is 5. 
-The Cohen's d effect size statistic is +1.0.

Accepted Answer

A) True 
 B)False

Question 4

At what level of measurement is the variable ethnicity?

Accepted Answer

A) Nominal. 
B) Ordinal. 
C) Ratio. 
D) Interval. 
A) Nominal. 
B) Ordinal. 
C) Ratio. 
D) Interval.

Question 5

At what level of measurement is the variable number of future incidents of child neglect?

Accepted Answer

A) Nominal 
B) Ordinal 
C) Ratio 
D) Interval 
A) Nominal 
B) Ordinal 
C) Ratio 
D) Interval

Question 6

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 7

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

Accepted Answer

A) True 
 B)False

Question 8

Terminally ill patients are both more likely to receive social work services and to die in the hospital.

Accepted Answer

A) True 
 B)False

Question 9

An experiment evaluating the effectiveness of an intervention for improving attitudes about something finds that the mean posttest score of the experimental group is 70, which is better than the control group’s mean posttest score of 65. The significance level is .05, and the p value is .01. The standard deviation is 5. 
-The results certainly are substantively significant.

Accepted Answer

A) True 
 B)False

Question 10

The mean is almost always sufficient in portraying the typical case in a distribution.

Accepted Answer

A) True 
 B)False

Question 11

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 12

The proportion of 100 released prisoners who get rearrested within three years is 24 percent for the 50 who attended a bible studies program in prison and 30 percent for the 50 who did not attend.Does this mean that prisoners who attend bible studies programs are less likely to get arrested within three years than those who do not attend? Explain your answer on statistical grounds.

Accepted Answer

To determine if prisoners who attend bib

Question 13

Coding refers to:

Accepted Answer

A) the assignment of a number or numeral to the attributes of a variable. 
B) the assignment of a row in a data matrix to each questionnaire item. 
C) the assignment of a number or numeral to each questionnaire item. 
D) transferring variables to the computer. 
E) the assignment of a variable to a computer column. 
A) the assignment of a number or numeral to the attributes of a variable. 
B) the assignment of a row in a data matrix to each questionnaire item. 
C) the assignment of a number or numeral to each questionnaire item. 
D) transferring variables to the computer. 
E) the assignment of a variable to a computer column.

Question 14

Explain the difference between statistical significance,relationship strength,and substantive significance.

Accepted Answer

Statistical significance, relationship s

Which of the following illustrates a grouped data frequency distribution?

The substantive significance of a relationship is always automatically indicated by the strength of the relationship.

At what level of measurement is the variable ethnicity?

At what level of measurement is the variable number of future incidents of child neglect?

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 variable number of children is at the nominal level of measurement

Terminally ill patients are both more likely to receive social work services and to die in the hospital.

The mean is almost always sufficient in portraying the typical case in a distribution.

A measure of dispersion describes

Coding refers to:

Explain the difference between statistical significance,relationship strength,and substantive significance.

Why Study Research?

Evidence-Based Practice: The Research Process

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

Exam 17: Quantitative Data Analysis

Which of the following illustrates a grouped data frequency distribution?

The substantive significance of a relationship is always automatically indicated by the strength of the relationship.

At what level of measurement is the variable ethnicity?

At what level of measurement is the variable number of future incidents of child neglect?

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 variable number of children is at the nominal level of measurement

Terminally ill patients are both more likely to receive social work services and to die in the hospital.

The mean is almost always sufficient in portraying the typical case in a distribution.

A measure of dispersion describes

Coding refers to:

Explain the difference between statistical significance,relationship strength,and substantive significance.

Why Study Research?

Evidence-Based Practice: The Research Process

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