Participants in Trials of an Experimental Intervention Are Asked to Track

question 10

Multiple Choice

Participants in trials of an experimental intervention are asked to track their daily food and liquid intake during the length of the trial period. Which of the following statements would best explain why the participants report higher-than-average water intake and lower-than-average intake of juices and sodas when compared with the general population?

• A) Type II error
• B) Hawthorne effect
• C) Instrumentation error
• D) Double-blind experimental design

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Definitions:

Mean

A statistical measure representing the average value in a set of numbers.

School Grades

Evaluations of a student's academic performance in educational institutions, often denoted by letters or numbers.

Standard Deviation

A statistic that measures the dispersion of a dataset relative to its mean, indicating how spread out the data points are.

Bowling Scores

The numerical representation of a player's performance in the game of bowling, calculated by the number of pins knocked down.