Answer question module 4.1

Hey Liz,

 

I agree with you, as you stated, that the DV is the math lesson performance in terms of grades scored by students; however, in direct opposition to your consideration that the IV is the learning of the math lesson, I surmised that the IV is the background noise, with two conditions applied- a radio being played at 52.5 dB and no radio being played at all. I came to this conclusion, as according to Gravetter and Wallnau (2010), the independent variable is what we, the researcher, are manipulating or studying as the cause of the dependent variable. Placing conditions as to noise or no noise, is what I would understand that we are manipulating.

 

Additionally, in your response, you speak of a questionnaire, Mary designs the questionnaire with similar questions and administers them to the two groups. Is this the DV? I know that you and I agreed on an assessment to demonstrate performance, so I was just curious if this questionnaire would be it for Mary’s study, or is this prior to the treatments?

 

As I am certainly not the statistical guru, I would benefit from learning from you and understanding your rational for your response. At this point, I am only responding to what I have gleaned from my side of the coin, but with dialogue, I would be able to see both sides of the coin, and thus moving forward, would be able to fully justify a sound position on this topic.

 

 

Danielle

 

Reference:

Gravetter, F. J. & Wallnau, L. B. (2010). Statistics for the behavioral sciences (9th ed.). Belmont, CA: Wadsworth Cengage