Question 1

Footnotes to a visualization could be used to state the Ws of the research topic.

Accepted Answer

A) True 
 B)False

Question 2

The type of chart or visualization is dependent on the number of variables involved in the research task, and, on their levels(s) of measurement. Do you agree with this statement? If so, give your reasoning with examples. If you do not agree, state your objections to this statement.

Accepted Answer

The answer of The type of chart or visualization is...

Question 3

For variables with more than two categories, pie charts are appropriate when all categories are of equal size, or, under which other situation?

Accepted Answer

A)  One category is much larger than the others. 
B)  There are more than five categories. 
C)  Two or three categories are much smaller than others. 
D)  The variable of interest is nominal.

Question 4

A trend chart had the variable YEAR on the X-axis. Values for the variable YEAR were 1990, 2000, 2005, 2010, and, 2015. The tick marks on the axis should be spaced equally to reflect the true slope of the trend line.

Accepted Answer

A) True 
 B)False

Question 5

How should stacks of a stacked bar chart be organized to reduce cognitive load?

Accepted Answer

A)  descending frequency or percent 
B)  in order of data source 
C)  thematically or empirically 
D)  rank of categories in variable

Question 6

Bar charts are generally perceived by readers to be a comparison of which items?

Accepted Answer

A)  outcome and categories of a variable 
B)  groups within an independent variable 
C)  two independent variables 
D)  variable across time dimension

Question 7

Describe the different chart types available to present one number on a chart or visualization. Provide an example of one of these chart types.

Accepted Answer

The answer of Describe the different chart types available to...

Question 8

How would you convert the chart you constructed in Question 2 to a visualization? Explain the steps you take to make this conversion. Show the end result of this conversion in your answer.

Accepted Answer

The answer of How would you convert the chart you...

Question 9

What are some of the drawbacks of developing a 3-D chart showing two dimensions or variables?

Accepted Answer

The answer of What are some of the drawbacks of...

Question 10

Which colors would you prefer to use, if any, for a chart that needs to be printed in grayscale? Explain your answer.

Accepted Answer

The answer of Which colors would you prefer to use,...

Question 11

Dumbbell dot plots could be used to portray the association between a dependent variable and two quantitative independent variables.

Accepted Answer

A) True 
 B)False

Question 12

A well-designed chart will state the topic and context of the data shown, give the categories and/or measurement units of all variables, and, which other principal characteristic? Choose from the following.

Accepted Answer

A)  provide an advanced visualization of the data 
B)  enable the reader to easily discern the patterns in data 
C)  specify the w's of the topic in the title or footnote 
D)  state the purpose of the exhibit in a footnote or text box

Question 13

Scatter charts are useful for showing association between which two types of variables?

Accepted Answer

A)  categorical and continuous variables 
B)  two ordinal variables 
C)  two continuous variables 
D)  nominal and ordinal variables

Question 14

Construct a research task of your choice from a real-world situation that has a dichotomous dependent or outcome variable, and two categorical independent variables. What type of chart would best represent the data from this task? Illustrate your reasoning by developing different charts with the data you constructed. Your reasoning should make it clear, which is the best chart type and why.

Accepted Answer

The answer of Construct a research task of your choice...

Question 15

Which of the primary gestalt principles refer to the reader mentally filling in an absent connection or a gap?

Accepted Answer

A)  connection principle 
B)  similarity and connection 
C)  continuity and closure 
D)  enclosure principle

Question 16

When is it convenient to use a logarithmic scale for values shown on the Y-axis of a dependent variable?

Accepted Answer

A)  All values are very large. 
B)  All values are very small. 
C)  Range of values is very large. 
D)  25th percentile value is very small.

Question 17

A bar chart shows the gross annual revenue, by year, of a Telecommunications company. Horizontal bars are shown for each of the four regions the company operates in, for the years 2019 and 2020. Year is shown on the X-axis of the chart. Bars of each region is given a separate color. Which gestalt principle helps the reader in interpreting this bar chart?

Accepted Answer

A)  similarity 
B)  connection 
C)  closure 
D)  continuity

Question 18

What is the gestalt principle of connection in the context of charts?

Accepted Answer

A)  Objects of the same shape are from the same group. 
B)  Data points connected by a line are closely related. 
C)  Incomplete shapes are mentally completed to a whole. 
D)  Dots within a shape are connected to each other.

Question 19

The average height of male adults for five time points are shown for Scandinavian countries as a whole, and for Norway, Sweden, and Finland individually. The time points or years, 1950, 1960, 1970, 1980, 1990, are shown on the X-axis. The average height for each time point or year is shown on the Y-axis for each of the four groups: Scandinavia, Norway, Sweden, and, Finland. The data points for each group are connected by a line. What type of a chart is this?

Accepted Answer

A)  line chart 
B)  trend chart 
C)  multigroup chart 
D)  multiple-line chart

Question 20

Text labels could be used in place of a legend in a visualization. Give an example and explain how this reduces cognitive load.

Accepted Answer

The answer of Text labels could be used in place...

Exam 7: Working With Charts and Visualizations

Footnotes to a visualization could be used to state the Ws of the research topic.

The type of chart or visualization is dependent on the number of variables involved in the research task, and, on their levels(s) of measurement. Do you agree with this statement? If so, give your reasoning with examples. If you do not agree, state your objections to this statement.

For variables with more than two categories, pie charts are appropriate when all categories are of equal size, or, under which other situation?

A trend chart had the variable YEAR on the X-axis. Values for the variable YEAR were 1990, 2000, 2005, 2010, and, 2015. The tick marks on the axis should be spaced equally to reflect the true slope of the trend line.

How should stacks of a stacked bar chart be organized to reduce cognitive load?

Bar charts are generally perceived by readers to be a comparison of which items?

Describe the different chart types available to present one number on a chart or visualization. Provide an example of one of these chart types.

How would you convert the chart you constructed in Question 2 to a visualization? Explain the steps you take to make this conversion. Show the end result of this conversion in your answer.

What are some of the drawbacks of developing a 3-D chart showing two dimensions or variables?

Which colors would you prefer to use, if any, for a chart that needs to be printed in grayscale? Explain your answer.

Dumbbell dot plots could be used to portray the association between a dependent variable and two quantitative independent variables.

A well-designed chart will state the topic and context of the data shown, give the categories and/or measurement units of all variables, and, which other principal characteristic? Choose from the following.

Scatter charts are useful for showing association between which two types of variables?

Which of the primary gestalt principles refer to the reader mentally filling in an absent connection or a gap?

When is it convenient to use a logarithmic scale for values shown on the Y-axis of a dependent variable?

What is the gestalt principle of connection in the context of charts?

Text labels could be used in place of a legend in a visualization. Give an example and explain how this reduces cognitive load.