A researcher found significantly different mean scores on an attitude scale for two groups known to be on different sides of the gun control issue.The researcher reported that this finding was evidence of the scale's
A) validity.
B) reliability.
C) objectivity.
D) divergent index.

Question

Quizplus · Accepted Answer

The significant difference in mean scores on the attitude scale for two groups known to be on different sides of the gun control issue is evidence of the scale's validity. Validity refers to the extent to which a test or measure actually measures what it intends to measure. In this case, the significant difference in mean scores suggests that the scale is measuring differences in attitudes towards gun control, which is a good indication of validity. Reliability refers to the consistency of results over time or across different observers, so it is not the best choice. Objectivity and divergent index are not applicable to this scenario.

A Researcher Found Significantly Different Mean Scores on an Attitude