In an evaluation study of the impact of car breathalyzers on drunk driving,researchers collected both quantitative survey data and qualitative interviews.In this case,the quantitative evaluation could determine
A)the efficacy of their survey instrument.
B)why the intervention worked.
C)whether the intervention worked.
D)how individuals experienced the intervention.

Question

Quizplus · Accepted Answer

Quantitative survey data is numerical data that can be analyzed using statistical methods to determine the effectiveness of the intervention. Therefore, by analyzing the quantitative survey data, the researchers can determine whether the use of car breathalyzers had an impact on drunk driving. The qualitative interviews, on the other hand, will provide insights into how individuals experienced the intervention and why it worked (or did not work). The efficacy of the survey instrument can also be determined separately from the impact evaluation analysis.

In an Evaluation Study of the Impact of Car Breathalyzers