Question 1

Define what researchers mean by reliability. Then define the four possible methods for achieving it.

Accepted Answer

The answer of Define what researchers mean by reliability. Then...

Question 2

First provide a definition of an index or scale. Your book discussed ways in which indexes can be used in the development of research questions and their measurements. Identify at least two reasons why a multi-item index would be useful to improve validity and two reasons why it would useful to improve reliability.

Accepted Answer

The answer of First provide a definition of an index...

Question 3

Think about what you learned in Chapter 4 about indexes that were used to capture the concept of substance abuse. What are some types of questions or indicators that would be most important to include in an index in order to measure the concept of substance abuse? Then think about if you just asked one of your questions or included only one indicator in your study. Which type of validity measure would you be unable to achieve by using just one question to capture substance abuse? Which type of reliability method would you be unable to use by using just one question to capture substance abuse?

Accepted Answer

The answer of Think about what you learned in Chapter...

Question 4

According to your text, which validation method provides the strongest evidence of measurement validity? Define this type of validation method. Then, using the example of a study that measures self-reports of committing theft, what are some challenges to obtaining this type of validity?

Accepted Answer

The answer of According to your text, which validation method...

Question 5

Explain at least one similarity and one difference between intraobserver and interobserver reliability. Then describe why interobserver reliability may greatly increase our confidence in a measure.

Accepted Answer

The answer of Explain at least one similarity and one...

Question 6

Consider the concept of "problem drinking." Imagine that the researcher defined it as having four (female) or five (male) or more drinks in a row during one drinking episode. What are some potential problems you can foresee in terms of the validity of such a measure for the concept of problem drinking? What are some ways that you could test the reliability of such a measure?

Accepted Answer

The answer of Consider the concept of "problem drinking." Imagine...

Question 7

Imagine you are a researcher that wants to study substance abuse. First of all, you need to decide what you mean by the term substance abuse. For example, describe which substances would be included in your definition and what do you mean by abuse (e.g., number of days of using substances, only when using multiple substances at once). What kinds of questions would you ask and what is your operational definition?

Accepted Answer

The answer of Imagine you are a researcher that wants...

Question 8

Imagine you created a survey to examine binge drinking on your campus. You asked respondents directly if they engaged in binge drinking. Once you started analyzing the results you realized what you were attempting to measure was not reflected in the question you asked. Which type of validity was not achieved in your study and why? Why is achieving this validity important? What question could you ask instead and what would rules would you use to say that a person engaged in binge drinking?

Accepted Answer

The answer of Imagine you created a survey to examine...

Question 9

Define the four levels of measurement listed in your textbook. Then provide an example of each.

Accepted Answer

The answer of Define the four levels of measurement listed...

Question 10

Define face validity and content validity. Provide an example of how we can develop questions or procedures that would address each type of validity. Then highlight at least one disadvantage and advantage for each type of validity.

Accepted Answer

The answer of Define face validity and content validity. Provide...

Question 11

Define construct validity and criterion validity. Provide an example of how we can develop questions or procedures that would address each type of validity. Then highlight at least one disadvantage and advantage for each type of validity. Also provide a brief statement as to how these types of validity are related.

Accepted Answer

The answer of Define construct validity and criterion validity. Provide...

Quiz 4: Conceptualization and Measurement

Define what researchers mean by reliability. Then define the four possible methods for achieving it.

According to your text, which validation method provides the strongest evidence of measurement validity? Define this type of validation method. Then, using the example of a study that measures self-reports of committing theft, what are some challenges to obtaining this type of validity?

Explain at least one similarity and one difference between intraobserver and interobserver reliability. Then describe why interobserver reliability may greatly increase our confidence in a measure.

Define the four levels of measurement listed in your textbook. Then provide an example of each.

Define face validity and content validity. Provide an example of how we can develop questions or procedures that would address each type of validity. Then highlight at least one disadvantage and advantage for each type of validity.