In an experiment,one group of children is given a drink each day with a special vitamin supplement.A second group of children is given the same drink but without the vitamin.Later,all children are given an IQ test to see if the vitamin had an effect on intelligence.In this experiment,the children's scores on the IQ test would be the
A) independent variable.
B) cross-sequential variable.
C) dependent variable.
D) control variable.

Question

Quizplus · Accepted Answer

The dependent variable is the variable being measured in an experiment, in this case, the IQ test scores. The independent variable is the variable being manipulated, which is the presence or absence of the special vitamin supplement. The control variable is a variable that is kept constant to ensure that any changes in the dependent variable are due to the independent variable, not other factors. The cross-sequential variable refers to a research design that combines both cross-sectional and longitudinal methods.

In an Experiment,one Group of Children Is Given a Drink