Chapter 5 Quiz

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How many subcategories of quantitative variables exist? Two Three Four Five

Three

Another word for discriminant validity is ______________ validity. convergent asymmetrical divergent multiple

divergent

Which of the following is NOT possible? A measure is neither reliable nor valid. A measure is both valid and reliable. A measure is reliable but not valid. A measure is valid but not reliable.

A measure is valid but not reliable.

Establishing construct validity would probably be most important for which of the following? A measure of heart rate A measure of the number of times a person eats alone during a month A measure of spirituality A measure of income

A measure of spirituality

Todd is studying the effect of popularity on academic success for his research methods project. He decides to measure popularity by asking each elementary school student to tell him how many friends he or she has. He assumes that more friends means the student is more popular. Which of the following best describes this variable? A ratio scale of measurement A qualitative variable An other-report measure A categorical variable

A ratio scale of measurement

Why are convergent and discriminant validity often evaluated together? Both terms mean the same thing. Both involve collecting information from a lot of psychological measures of theoretical interest. Both require the use of scatterplots. Both have to be determined by a panel of experts.

Both involve collecting information from a lot of psychological measures of theoretical interest.

A correlation-based statistic called _____________ is commonly used to determine internal reliability. Cronbach's alpha kappa a scatterplot Pearson's r

Cronbach's alpha

For his research methods class, Felipe plans to watch how students treat other children in their classrooms who have attention-deficit/hyperactivity disorder (ADHD). He will evaluate how positively or negatively the children are treated by their classmates. This is an example of what type of measurement? Self-report measurement Observational measurement Physiological measurement Archival measurement

Observational measurement

Which of the following is true of operational definitions? There is only one operational definition that is possible for each conceptual definition. The specification of operational definitions is one of the creative aspects of the research process. Conceptual definitions are created after operational definitions are determined. Operational definitions and conceptual definitions are the same thing.

The specification of operational definitions is one of the creative aspects of the research process.

Hosea is studying the relationship between caffeine consumption and problem-solving ability. Which of the following is a categorical way to operationalize caffeine consumption? The number of cups of coffee consumed in a day The number of milligrams of caffeine consumed during the study The frequency of buying energy drinks Whether the participant drank a soda in the 24 hours prior to the study

Whether the participant drank a soda in the 24 hours prior to the study


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