Question 1

You ask people two open-ended questions in a survey: what is your religious affiliation, and list the names of the magazines that you subscribe to. Develop a coding scheme for each of these variables and justify it as a good coding scheme.

Accepted Answer

The answer of You ask people two open-ended questions in...

Question 2

All of the following terms refer to outcomes that can occur when conducting table elaboration EXCEPT:

Accepted Answer

A) interpretation. 
B) explanation. 
C) interdependence. 
D) spuriousness.

Question 3

The skewness of a frequency distribution could not be determined if the distribution:

Accepted Answer

A) involved a variable measured at the interval level. 
B) involved numerical data. 
C) involved a variable measured at the nominal level. 
D) involved a variable measured at the ordinal level.

Question 4

According to the text, bar graphs are especially useful for representing data that:

Accepted Answer

A) is at the interval or ratio level of measurement. 
B) is at the nominal or ordinal level of measurement. 
C) is in numeric rather than alphanumeric form. 
D) is continuous rather than discrete.

Question 5

In many statistical analysis programs, a "compute" procedure is used to:

Accepted Answer

A) detect errors that result during data entry. 
B) create new variables from one or more existing variables. 
C) decide whether to reject a null hypothesis. 
D) determine which kind of graph would be most appropriate for the data at hand.

Question 6

In a grouped frequency distribution, the size of the grouped intervals is called:

Accepted Answer

A) the computed size. 
B) the valid interval. 
C) the interval width. 
D) the raw interval.

Question 7

In a codebook, the term "value label" refers to:

Accepted Answer

A) the value of a numeric variable. 
B) a designation in words of what each value of a variable represents. 
C) the name that has been given to a variable in a computer file. 
D) a designation of what is to be done with missing values in a data file.

Question 8

Table elaboration is most clearly a part of:

Accepted Answer

A) multivariate analysis. 
B) univariate analysis. 
C) bivariate analysis. 
D) grouped frequency distributions.

Question 9

In table elaboration, a "test variable" could be best described as:

Accepted Answer

A) a control variable. 
B) an independent variable. 
C) a dependent variables. 
D) a control variable and an independent variable.

Question 10

A percentage difference derived from a percentage table:

Accepted Answer

A) is a crude indicator of the strength of a relationship. 
B) indicates the amount of error made when converting a contingency table to a percentage table. 
C) is meaningless without another one to compare with it. 
D) indicates the percentage of the population represented by the sample.

Question 11

When data are first collected, they are in the form of a:

Accepted Answer

A) raw data distribution. 
B) simple frequency distribution. 
C) grouped frequency distribution. 
D) contingency distribution.

Question 12

The term bivariate statistics is used to describe statistics that:

Accepted Answer

A) are in graphical form. 
B) describe the distribution of a single variable. 
C) describe the relationship between two variables. 
D) are used for variables at the interval or ratio level.

Question 13

The purpose of the "data cleaning" step in data analysis is to:

Accepted Answer

A) determine which statistical test is appropriate. 
B) detect errors that result during data entry. 
C) compute more complex variables from existing variables. 
D) eliminate variables that will not be used in the analysis.

Question 14

The term "simple frequency distribution" refers to:

Accepted Answer

A) a distribution of all the values of all the separate cases on a variable. 
B) a distribution in which each value of a variable is listed once, along with the number of cases that have that value. 
C) a distribution in which a large number of categories of a variable are combined together to form a smaller number of categories. 
D) a distribution that has been placed into some form of graph.

Question 15

If a contingency table is a third-order partial table, then the number of variables controlled is:

Accepted Answer

A) two. 
B) three. 
C) four. 
D) it can't be determined from the information given.

Question 16

The two preferred methods for graphing continuous data are:

Accepted Answer

A) pie charts and frequency polygons. 
B) bar charts and frequency polygons. 
C) pie charts and bar charts. 
D) frequency polygons and histograms.

Question 17

According to the conventions used in this text, contingency tables:

Accepted Answer

A) contain three or more variables. 
B) are applied only to univariate statistics. 
C) represent the independent variable with the vertical columns of the table. 
D) represent the independent variable with the horizontal rows of the table.

Question 18

Fifty minor offenders, arrested for shoplifting, were used as subjects in a research project. One half were placed on probation and the other half were given a special shoplifter group counseling program. The results were as follows for those on probation: 20 re arrested, 5 no offenses. For the group counseling subjects, 10 were re arrested and 15 had no offenses. Prepare a contingency table for this data, followed by a percentage table. Finally, compute a percentage difference between the two conditions.What does the percentage difference say about the relationship between the two variables

Accepted Answer

The answer of Fifty minor offenders, arrested for shoplifting, were...

Question 19

In a bar graph, the vertical axis represents:

Accepted Answer

A) the frequencies or number of cases in each category. 
B) the number of cases in the population. 
C) the categories of the variable. 
D) the raw data distribution.

Question 20

__________ refers to deriving some meaning from the observation that have been made during a research project.

Accepted Answer

A) Data analysis 
B) Contingency analysis 
C) Table elaboration 
D) Data transformation

Exam 14: Data Analysis I-- Data Preparation and Presentation