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.
-Which of the following claims is best supported by information from the abstract?
A) There were equal numbers of males and females in the intervention and control conditions.
B) The researchers controlled for socio-economic status (SES) in their analysis.
C) Participants in the intervention group were more likely to major in a STEM field in college as compared to participants in the control group.
D) The researchers likely randomly assigned participants to either the intervention or the control condition.

Question

Quizplus · Accepted Answer

The abstract does not provide information about the gender distribution or socio-economic status of the participants, and there is no mention of any analysis of college majors. However, the authors do state that they conducted an "experimental test" of the intervention, which suggests that they likely randomly assigned participants to either the intervention or control condition. Therefore, choice D is best supported by information from the abstract.

Based on This Following Abstract Taken from a 2012 Issue