Question

imagine raising goldfish at a variety of temperatures, to test the effect of temperature on goldfish metabolism. in this experiment, temperature represents what type of variable?
control
responding
correlative
placebo
experimental

Explanation:

In an experiment to test the effect of temperature on goldfish metabolism, the temperature is the variable that the experimenter manipulates. This is an experimental variable. A control variable would be held constant, a responding variable is what is measured (metabolism here), correlative is about relationships between variables, and a placebo is not relevant in this context.

Answer:

F. experimental