A researcher designs a study to determine whether female preschoolers prefer sweetened or unsweetened cereal. The researcher first presents the children with the sweet cereal and measures how much they ate. Later, during the same session, the researcher presents the children with the unsweetened cereal and measures how much they ate. The research finds that the group of preschoolers ate more of the sweetened cereal and therefore prefers the sweetened cereal. Is this conclusion justified?
A) Yes; this conclusion is justified.
B) No; this conclusion is not justified. Individual differences could threaten the results.
C) No; this conclusion is not justified. Time-related variables could threaten the results.
D) No; this conclusion is not justified. Children's gender could threaten the results

Question

Quizplus · Accepted Answer

Time-related variables, such as the children being less hungry after eating the first cereal, could influence how much they eat of the second cereal, thus affecting the results.

A Researcher Designs a Study to Determine Whether Female Preschoolers