Question 1

The higher the value of the correlation coefficient, the stronger the relationship between the two variables in the analysis.

Accepted Answer

A) True 
 B)False  True

Question 2

Consider the following study hypothesis: Scores on the Stress Scale have a positive relationship with hospital readmission (measured as either Yes or No) even when scores on the Social Support Scale are taken into consideration. Answer the following question: (1) How many variables are in the analysis of data for this hypothesis and what is the label you will give for each one? (2) What is the level of measurement for each of these variables? (3) What variable is the independent variable?

Accepted Answer

There are three variables in this analysis: stress, hospital readmission, and social support. Stress and social support are measured at the interval level, while hospital readmission is measured at the nominal level. The independent variable is hospital readmission because this is the variable that is believed to be caused by the other variables.

Question 3

When you compute the effect size in a one-group pretest-posttest study using a score for measuring depression, an effect size of 1.0 would mean that ______.

Accepted Answer

A)  the data were found to be statistically significant 
B)  the typical client in the study had gained on depression by an amount that represents one standard deviation of scores 
C)  the data were not found to be statistically significant but were found to be of practical significance 
D)  the data were found to be neither statistically significant nor of practical significance 
A)  the data were found to be statistically significant 
B)  the typical client in the study had gained on depression by an amount that represents one standard deviation of scores 
C)  the data were not found to be statistically significant but were found to be of practical significance 
D)  the data were found to be neither statistically significant nor of practical significance B

Question 4

The standard deviation is a measure of ______.

Accepted Answer

A)  correlation 
B)  dependency 
C)  relationship 
D)  variance 
A)  correlation 
B)  dependency 
C)  relationship 
D)  variance

Question 5

Suppose you have the following hypothesis: Scores for anxiety for a single client will be lower during the treatment period than the one score taken for the baseline. What statistic would be appropriate for testing this hypothesis?

Accepted Answer

A)  The independent t test which compares the scores of two groups of people. 
B)  The chi-square test which examines the relationship between two variables where each is measured at the nominal level. 
C)  The Spearman correlation which examines the relationship between two variables where each is measured at the ordinal level. 
D)  The one-sample t test which compares a set of scores with a single score. 
A)  The independent t test which compares the scores of two groups of people. 
B)  The chi-square test which examines the relationship between two variables where each is measured at the nominal level. 
C)  The Spearman correlation which examines the relationship between two variables where each is measured at the ordinal level. 
D)  The one-sample t test which compares a set of scores with a single score.

Question 6

When you select a statistic to test your hypothesis, you need to know the level of measurement for each variable in your analysis.

Accepted Answer

A) True 
 B)False

Question 7

The variable of gender would normally be measured at the ordinal level.

Accepted Answer

A) True 
 B)False

Question 8

A descriptive statistic that could be calculated for a variable measured at the ordinal level but not the nominal level is the ______.

Accepted Answer

A)  median 
B)  mode 
C)  standard deviation 
D)  frequency 
A)  median 
B)  mode 
C)  standard deviation 
D)  frequency

Question 9

Name and briefly describe three levels of measurement. Why do you need to know the level of measurement of a variable when you are analyzing data?

Accepted Answer

The answer of Name and briefly describe three levels of...

Question 10

Suppose your treatment objective is to improve self-esteem for a group of clients and you measure each client one time before treatment begins and one time at the end of the treatment on a self-esteem scale that gives higher scores for higher self-esteem. Your mean pretest score was 16.8 and your mean posttest score was 21.5. Your data were subjected to the paired t test with these results: n = 21; t = 1.3; p > .05. Answer the following three questions: (1) What must you find in order to report that your data supported your study hypothesis? (2) Did your data support your hypothesis? (3) Explain why it did or did not.

Accepted Answer

The answer of Suppose your treatment objective is to improve...

Question 11

In evaluative research, you can report that your data supported your study hypothesis when the data ______.

Accepted Answer

A)  went in the hypothesized direction and were found to be statistically significant 
B)  went in the hypothesized direction and were found to be of practical significance 
C)  were of practical significance but not of statistical significance 
D)  supported the literature that was reviewed 
A)  went in the hypothesized direction and were found to be statistically significant 
B)  went in the hypothesized direction and were found to be of practical significance 
C)  were of practical significance but not of statistical significance 
D)  supported the literature that was reviewed

Question 12

The dependent variable is the variable that is believed to be ______.

Accepted Answer

A)  dependent upon a random sample in order that the hypothesis can be confirmed 
B)  the cause of the independent variable 
C)  caused by the independent variable 
D)  dependent upon the presentation of an experimental design in order to demonstrate causation 
A)  dependent upon a random sample in order that the hypothesis can be confirmed 
B)  the cause of the independent variable 
C)  caused by the independent variable 
D)  dependent upon the presentation of an experimental design in order to demonstrate causation

Question 13

The mode is the value that occurred most frequently in an array of data.

Accepted Answer

A) True 
 B)False

Question 14

The analysis of data in social work research can be used to ______.

Accepted Answer

A)  describe people 
B)  test the hypothesis in explanatory research 
C)  describe people and to test the hypothesis in explanatory research 
D)  describe people and to generalize our findings on a scientific basis 
A)  describe people 
B)  test the hypothesis in explanatory research 
C)  describe people and to test the hypothesis in explanatory research 
D)  describe people and to generalize our findings on a scientific basis

Question 15

The value of the correlation coefficient can range from a low of 0 to a high of 1.0 and can be either positive or negative.

Accepted Answer

A) True 
 B)False

Question 16

How are descriptive statistics and inferential statistics used differently in data analysis? What is an example of each?

Accepted Answer

The answer of How are descriptive statistics and inferential statistics...

Question 17

What step in the research process comes before the analysis of data?

Accepted Answer

A)  the development of the knowledge base 
B)  the drawing of conclusions about the data in regard to the basic research question 
C)  the discussion of the implications of the data results to the improvement of social work practice 
D)  the discussion of the strengths and weaknesses of the study methods in regard to the study findings with recommendations on how the study methods for this study could be improved 
A)  the development of the knowledge base 
B)  the drawing of conclusions about the data in regard to the basic research question 
C)  the discussion of the implications of the data results to the improvement of social work practice 
D)  the discussion of the strengths and weaknesses of the study methods in regard to the study findings with recommendations on how the study methods for this study could be improved

Question 18

A correlation coefficient ______.

Accepted Answer

A)  reveals the strength of the relationship between two variables. 
B)  will provide you with information on the proportion of clients who improved on the target behavior. 
C)  will provide you with information on the means and standard deviations of data for your dependent variable. 
D)  shows whether the study results can be generalized on a scientific basis. 
A)  reveals the strength of the relationship between two variables. 
B)  will provide you with information on the proportion of clients who improved on the target behavior. 
C)  will provide you with information on the means and standard deviations of data for your dependent variable. 
D)  shows whether the study results can be generalized on a scientific basis.

Question 19

The median is an inferential statistic.

Accepted Answer

A) True 
 B)False

Question 20

If you had a question on a questionnaire that asked for the respondent to mark either Male or Female for the variable of gender, you would have a variable that is measured at what level?

Accepted Answer

A)  ordinal 
B)  nominal 
C)  ratio 
D)  interval 
A)  ordinal 
B)  nominal 
C)  ratio 
D)  interval

The higher the value of the correlation coefficient, the stronger the relationship between the two variables in the analysis.

When you compute the effect size in a one-group pretest-posttest study using a score for measuring depression, an effect size of 1.0 would mean that ______.

The standard deviation is a measure of ______.

Suppose you have the following hypothesis: Scores for anxiety for a single client will be lower during the treatment period than the one score taken for the baseline. What statistic would be appropriate for testing this hypothesis?

When you select a statistic to test your hypothesis, you need to know the level of measurement for each variable in your analysis.

The variable of gender would normally be measured at the ordinal level.

A descriptive statistic that could be calculated for a variable measured at the ordinal level but not the nominal level is the ______.

Name and briefly describe three levels of measurement. Why do you need to know the level of measurement of a variable when you are analyzing data?

In evaluative research, you can report that your data supported your study hypothesis when the data ______.

The dependent variable is the variable that is believed to be ______.

The mode is the value that occurred most frequently in an array of data.

The analysis of data in social work research can be used to ______.

The value of the correlation coefficient can range from a low of 0 to a high of 1.0 and can be either positive or negative.

How are descriptive statistics and inferential statistics used differently in data analysis? What is an example of each?

What step in the research process comes before the analysis of data?

A correlation coefficient ______.

The median is an inferential statistic.

If you had a question on a questionnaire that asked for the respondent to mark either Male or Female for the variable of gender, you would have a variable that is measured at what level?

Science, Research, and Social Work Practice

Purposes and Processes of Social Work Research

Ethics and Cultural Competence in Social Work Research

Evidence-Based Practice

Conducting Research That Employs Social Surveys

Conducting Research That Describes People: What Are the Traits That Describe the Good Manager

Conducting Research That Explains Things: What Explains Life Satisfaction

Conducting Research That Evaluates Services

Conducting Qualitative Research That Explores the Unknown

Conducting Program Evaluations

Developing Your Knowledge Base and Intervention

Drawing Your Study Sample

Measuring Your Study Variables

Selecting a Research Design for a Group Evaluation Study

Selecting a Research Design for a Single Client

Analyzing Qualitative Data

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Exam 16: Analyzing Data and Drawing Conclusions

The higher the value of the correlation coefficient, the stronger the relationship between the two variables in the analysis.

When you compute the effect size in a one-group pretest-posttest study using a score for measuring depression, an effect size of 1.0 would mean that ______.

The standard deviation is a measure of ______.

Suppose you have the following hypothesis: Scores for anxiety for a single client will be lower during the treatment period than the one score taken for the baseline. What statistic would be appropriate for testing this hypothesis?

When you select a statistic to test your hypothesis, you need to know the level of measurement for each variable in your analysis.

The variable of gender would normally be measured at the ordinal level.

A descriptive statistic that could be calculated for a variable measured at the ordinal level but not the nominal level is the ______.

Name and briefly describe three levels of measurement. Why do you need to know the level of measurement of a variable when you are analyzing data?

In evaluative research, you can report that your data supported your study hypothesis when the data ______.

The dependent variable is the variable that is believed to be ______.

The mode is the value that occurred most frequently in an array of data.

The analysis of data in social work research can be used to ______.

The value of the correlation coefficient can range from a low of 0 to a high of 1.0 and can be either positive or negative.

How are descriptive statistics and inferential statistics used differently in data analysis? What is an example of each?

What step in the research process comes before the analysis of data?

A correlation coefficient ______.

The median is an inferential statistic.

If you had a question on a questionnaire that asked for the respondent to mark either Male or Female for the variable of gender, you would have a variable that is measured at what level?

Science, Research, and Social Work Practice

Purposes and Processes of Social Work Research

Ethics and Cultural Competence in Social Work Research

Evidence-Based Practice

Conducting Research That Employs Social Surveys

Conducting Research That Describes People: What Are the Traits That Describe the Good Manager

Conducting Research That Explains Things: What Explains Life Satisfaction

Conducting Research That Evaluates Services

Conducting Qualitative Research That Explores the Unknown

Conducting Program Evaluations

Developing Your Knowledge Base and Intervention

Drawing Your Study Sample

Measuring Your Study Variables

Selecting a Research Design for a Group Evaluation Study

Selecting a Research Design for a Single Client

Analyzing Qualitative Data

Filters