Based on This Following Abstract Taken from a 2012 Issue

Multiple Choice

based on this following abstract taken from a 2012 issue of Psychological Science . The authors of the paper examined the effects of an intervention on adolescents' enrollment in STEM courses. Instructors are advised to use the reference below to retrieve the original abstract for their use.
Harackiewicz, J. M., Rozek, C. S., Hulleman, C. S., & Hyde, J. S. (2012) . Helping parents to motivate adolescents in mathematics and science an experimental test of a utility-value intervention. Psychological Science, 0956797611435530.
-In the article, the researchers reported a manipulation check, stating that they measured how much parents reported using the intervention tools with their children, and that the researchers coded parents' responses.
The manipulation check contributed to the research design by…

A) providing a basis for arguing that teenagers do listen to their parents.
B) providing a basis for arguing that the intervention (e.g., parents used the brochures and the Web site) was valid.
C) reducing problems of ethics by making sure that participants were compliant.
D) catching participants who might have a hidden agenda.