Question

in an experiment to see if light affected the amount of interaction, one group of students was put in a lighted room for an hour, and another group was put in a room that was totally dark. cameras recorded the interaction in each group. the independent variable in this experiment was: a. the filming of the experiment. b. the interaction that occurred. c. the amount of light. d. the length of time in the room.

Explanation:

In an experiment, the independent variable is the factor that is manipulated to observe its effect on the dependent variable. Here, the experiment aims to see how light affects interaction. The researchers manipulated the amount of light (lighted room vs. dark room) to observe changes in interaction. Option A is a method of recording, not a variable. Option B is the dependent variable (outcome being measured). Option D is kept constant (both groups are in the room for an hour), so it's a controlled variable, not independent. Thus, the independent variable is the amount of light.

Answer:

C. the amount of light.