Question 1

When a category of a variable has very few cases in it, we might conclude that the

Accepted Answer

A)  Null hypothesis is true. 
B)  Categories are not well conceptualized. 
C)  Probability value is too low. 
D)  Independent variables outnumber the dependent variables. 
A)  Null hypothesis is true. 
B)  Categories are not well conceptualized. 
C)  Probability value is too low. 
D)  Independent variables outnumber the dependent variables. B

Question 2

The process of changing one value to another is referred to as:

Accepted Answer

A)  Data selection. 
B)  Recoding. 
C)  Stratification. 
D)  Clustering. 
A)  Data selection. 
B)  Recoding. 
C)  Stratification. 
D)  Clustering. B

Question 3

Bar charts are recommended for

Accepted Answer

A)  All types of data. 
B)  Nominal and ordinal data. 
C)  Interval data. 
D)  Ratio data. 
A)  All types of data. 
B)  Nominal and ordinal data. 
C)  Interval data. 
D)  Ratio data. B

Question 4

Histograms and line graphs are recommended for

Accepted Answer

A)  All types of data. 
B)  Nominal data. 
C)  Ordinal data. 
D)  Interval and ratio data. 
A)  All types of data. 
B)  Nominal data. 
C)  Ordinal data. 
D)  Interval and ratio data.

Question 5

Which is an important question the researcher will try to answer through data analysis?

Accepted Answer

A)  Is this qualitative research? 
B)  What is the null hypothesis? 
C)  What is typical or common in the data? 
D)  What is the probability of a type I error? 
A)  Is this qualitative research? 
B)  What is the null hypothesis? 
C)  What is typical or common in the data? 
D)  What is the probability of a type I error?

Question 6

Which provides a count of how many times each variable value is represented in the database?

Accepted Answer

A)  Standard deviation. 
B)  Normal curve. 
C)  Frequency distribution. 
D)  Descriptive statistic. 
A)  Standard deviation. 
B)  Normal curve. 
C)  Frequency distribution. 
D)  Descriptive statistic.

Question 7

Discuss two reasons why a researcher might want to recode data categories.

Accepted Answer

There are several reasons why a research

Question 8

2.	Ten individuals were sampled regarding their age, yielding the following results:  25, 26, 27, 28, 30, 31, 32, 32, 33, 86.  The sum of these 10 numbers is 350. Given this information, answer the following questions:
a.	What is the mode of the distribution?
b.	What is the median of the distribution?
c.	What is the mean of the distribution?
d.	Which of the 10 values, if any, would you consider an outlier?
e.	How does the outlier influence the calculation of each measure of central tendency?
f.	Which measure of central tendency best represents the typical age of those in the distribution?
g.	What can you surmise about the limitations of measures of central tendency based on this exercise?

Accepted Answer

a. The mode of the distribution is 32, a

Question 9

Which BEST enables a social worker to describe how the data differ or vary from what is common?

Accepted Answer

A)  Measures of variability. 
B)  Kurtosis. 
C)  Level of measurement. 
D)  Central tendency. 
A)  Measures of variability. 
B)  Kurtosis. 
C)  Level of measurement. 
D)  Central tendency.

Question 10

When a researcher decides to collapse data, the researcher should:

Accepted Answer

A)  Categorize the data. 
B)  Retest the null hypothesis. 
C)  Examine the review of literature. 
D)  Create decision rules. 
A)  Categorize the data. 
B)  Retest the null hypothesis. 
C)  Examine the review of literature. 
D)  Create decision rules.

Question 11

How might a researcher assess the internal consistency of a scale?

Accepted Answer

A researcher can assess the internal con

Question 12

When we detect an outlier, we should:

Accepted Answer

A)  Locate the value in our database. 
B)  Find the associated record identification number. 
C)  Determine whether the data were entered correctly. 
D)  All of the above. 
A)  Locate the value in our database. 
B)  Find the associated record identification number. 
C)  Determine whether the data were entered correctly. 
D)  All of the above.

Question 13

Using the ordinal data provided below, order the data by constructing a frequency distribution.
n = 89
Variable = Basic skills in working with older adults are important to my career plans.
Categories: Strongly agree = 10 (11.24%), Agree =29 (32.58%), Neither =13 (14.61%), Disagree = 20 (22.47), Strongly Disagree = 18 (22.22%)

Accepted Answer

To construct a frequency distribution fo

Question 14

A frequency distribution that includes "frequency," "percent," "valid percent," and "cumulative percent" would be appropriately used with which type of data?

Accepted Answer

A)  Ratio, interval, ordinal, and nominal. 
B)  Ratio, interval, and ordinal. 
C)  Ratio and interval. 
D)  Ratio. 
A)  Ratio, interval, ordinal, and nominal. 
B)  Ratio, interval, and ordinal. 
C)  Ratio and interval. 
D)  Ratio.

Question 15

Which data is MOST appropriate for the use of the mean?

Accepted Answer

A)  Number of children. 
B)  Race. 
C)  Social security numbers. 
D)  Marital status. 
A)  Number of children. 
B)  Race. 
C)  Social security numbers. 
D)  Marital status.

Question 16

Describe the steps used in computing a scale from multiple variables.

Accepted Answer

Computing a scale from multiple variable

Question 17

Which is an important question the researcher will try to answer through data analysis?

Accepted Answer

A)  Is this quantitative research? 
B)  What is the alternative hypothesis? 
C)  What is the extent of difference or variation reflected in the data? 
D)  What is the probability of a type II error? 
A)  Is this quantitative research? 
B)  What is the alternative hypothesis? 
C)  What is the extent of difference or variation reflected in the data? 
D)  What is the probability of a type II error?

Question 18

Using the nominal data provided below, order the data by constructing a frequency distribution.
n = 190
Variable = Ethnicity; categories: African American = 38 (20%), Native American = 12 (6.32%), Asian/Pacific Islander = 24 (12.63%), Latino = 61 (32.11%), Caucasian = 45 (23.68%), Other = 8 (4.21%), Declined = 2 (1.05%)

Accepted Answer

To construct a frequency distribution fo

Question 19

Although data collection and preparation are major achievements, the true value of the research comes in the form of:

Accepted Answer

A)  Hypothesis construction. 
B)  Statistics. 
C)  Analysis and reporting. 
D)  Verstehen. 
A)  Hypothesis construction. 
B)  Statistics. 
C)  Analysis and reporting. 
D)  Verstehen.

Question 20

Which of the following represents the process in which researchers turn data into information?

Accepted Answer

A)  Data analysis. 
B)  Hypothesis testing. 
C)  Probability values. 
D)  Normal curves. 
A)  Data analysis. 
B)  Hypothesis testing. 
C)  Probability values. 
D)  Normal curves.

When a category of a variable has very few cases in it, we might conclude that the

The process of changing one value to another is referred to as:

Bar charts are recommended for

Histograms and line graphs are recommended for

Which is an important question the researcher will try to answer through data analysis?

Which provides a count of how many times each variable value is represented in the database?

Discuss two reasons why a researcher might want to recode data categories.

Which BEST enables a social worker to describe how the data differ or vary from what is common?

When a researcher decides to collapse data, the researcher should:

How might a researcher assess the internal consistency of a scale?

When we detect an outlier, we should:

A frequency distribution that includes "frequency," "percent," "valid percent," and "cumulative percent" would be appropriately used with which type of data?

Which data is MOST appropriate for the use of the mean?

Describe the steps used in computing a scale from multiple variables.

Which is an important question the researcher will try to answer through data analysis?

Although data collection and preparation are major achievements, the true value of the research comes in the form of:

Which of the following represents the process in which researchers turn data into information?

The Context of Social Work Research

The Politics and Ethics of Social Work Research

Research Problems and Research Questions

Single Subject Research

Research in Agencies and Communities

Qualitative Research

Group Research Design

Sampling

Measurement

Data Collection and Data Entry

Bivariate Statistics and Statistical Inference

Filters

Exam 11: Descriptions of Quantitative Data

When a category of a variable has very few cases in it, we might conclude that the

The process of changing one value to another is referred to as:

Bar charts are recommended for

Histograms and line graphs are recommended for

Which is an important question the researcher will try to answer through data analysis?

Which provides a count of how many times each variable value is represented in the database?

Discuss two reasons why a researcher might want to recode data categories.

Which BEST enables a social worker to describe how the data differ or vary from what is common?

When a researcher decides to collapse data, the researcher should:

How might a researcher assess the internal consistency of a scale?

When we detect an outlier, we should:

A frequency distribution that includes "frequency," "percent," "valid percent," and "cumulative percent" would be appropriately used with which type of data?

Which data is MOST appropriate for the use of the mean?

Describe the steps used in computing a scale from multiple variables.

Which is an important question the researcher will try to answer through data analysis?

Although data collection and preparation are major achievements, the true value of the research comes in the form of:

Which of the following represents the process in which researchers turn data into information?

The Context of Social Work Research

The Politics and Ethics of Social Work Research

Research Problems and Research Questions

Single Subject Research

Research in Agencies and Communities

Qualitative Research

Group Research Design

Sampling

Measurement

Data Collection and Data Entry

Bivariate Statistics and Statistical Inference

Filters