Ordinal Scales and Likert-scale Variables Quiz

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Which type of variables are all subjective rating scales considered to be?

Nominal

Ordinal (correct)

Interval

Ratio

What is the format typically used in Likert-scale variables?

1 to 10 scale

1 to 5 scale (correct)

0 to 100 scale

A to F scale

What is the main characteristic of ordinal-level variables?

They have equal intervals between categories.

They use numerical values only.

They have a meaningful order but may not have uniform intervals. (correct)

They do not have a logical order.

Who originally developed the Likert scales?

Rensis Likert Signup and view all the answers

When combining ordinal-level variables together, what type of variable does the composite become?

Ordinal Signup and view all the answers

What is the purpose of Likert scales in health care quality studies?

To assess patient satisfaction and outcomes Signup and view all the answers

What do frequency distribution tables provide?

A way of organizing data by using a table format Signup and view all the answers

Why is it easier for readers to glean information from data organized into a table format?

It allows for quicker understanding of dispersion and outliers Signup and view all the answers

From Table 2-2 in the text, why is it not immediately obvious where the middle of the distribution lies?

The data is unordered Signup and view all the answers

How does organizing data into a table format help in understanding outliers?

Clearly highlights the outliers Signup and view all the answers

What does a cumulative frequency column in a frequency distribution table show?

Running total of frequencies Signup and view all the answers

Why are frequency distribution tables important for understanding data?

They allow readers to quickly grasp basic characteristics Signup and view all the answers

What is a key advantage of stem-and-leaf plots?

Preserving individual values Signup and view all the answers

In a stem-and-leaf plot, where is the smallest stem located?

At the top Signup and view all the answers

Why are stem-and-leaf plots best used with small data sets?

Constructing them with large datasets is cumbersome Signup and view all the answers

How are stems and leaves separated in a stem-and-leaf plot?

By a vertical line Signup and view all the answers

What is the age range for diabetes onset in the sample provided in Table 2-5?

5 to 52 years Signup and view all the answers

What is a strength of stem-and-leaf plots regarding the recording of data?

Recording each participant's value directly Signup and view all the answers

What information does a frequency distribution table show?

Possible values of the variable grouped into class intervals along with raw and relative frequencies Signup and view all the answers

Which of the following is NOT typically included in a frequency distribution table?

Median of the data Signup and view all the answers

What does the term 'cumulative frequency' represent in a frequency distribution table?

Cumulative percentage up to the indicated range Signup and view all the answers

In the given body weight data, which observation has a squared weight of 31,684?

17 Signup and view all the answers

What is the purpose of creating a frequency distribution table from data?

To simplify and organize data for easier interpretation Signup and view all the answers

Which of the following is NOT typically shown in a frequency distribution table?

Outliers in the data Signup and view all the answers

What is the difference between the largest and smallest values in a set of values known as?

Range Signup and view all the answers

Which measure of dispersion is calculated by taking the square root of the variance?

Standard deviation Signup and view all the answers

Which measure is considered more informative than the range in describing the variability of a set of values?