In a study Dr.Enderby is systematically varying the amplitude of a sound wave and asking observers to indicate how loud the sound seems.In this study,amplitude is a(n)___ variable.Dr.Enderby should display the results of the study using a(n)___.
A) dependent; line graph
B) dependent; bar graph
C) independent; line graph
D) independent; bar graph

Question

Quizplus · Accepted Answer

Amplitude is the independent variable in the study as it is being systematically varied by the researcher. The observers' responses to the changes in amplitude are the dependent variable. Therefore, the best choice is a line graph, as it is most appropriate for showing the relationship between an independent variable (amplitude) and a dependent variable (perceived loudness).

In a Study Dr