In order to study the effects of temperature on mood, dr. sanchez had students fill out questionnaires in either very warm or very cool rooms. in this study, the independent variable consisted of the

The independent variable is the temperature.

The study aims to assess how the temperature level affects another variable, that, in turn, will be the dependent variable: the mood of the participants. The aim of the study is to conclude whether it is possible or not to infer causality between those two, in other words, to see whether different levels of temperature (the cause), trigger the emergence of a certain type of mood (the effect).