What are the independent variables (IVs) in the study about hunger and sleep's effects on irritability?

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Prepare for UCF's PSY3204C Statistical Methods in Psychology Quiz 3. Use interactive tools and engaging quizzes to solidify your understanding of statistics in psychology, and enhance your chances of success.

The independent variables in the study about hunger and sleep's effects on irritability are hunger and sleep. In this context, hunger is manipulated between two conditions (hungry and fed), and sleep is similarly manipulated with two conditions (tired and alert).

Independent variables are those variables that researchers manipulate or control in an experiment to observe their effect on other variables, known as dependent variables. In this case, the researchers are examining how different states of hunger and sleep impact irritability, which is the outcome being measured.

Hunger and sleep are both crucial factors that can influence irritability levels, making them the focus of manipulation in this study. By having these two independent variables with specific conditions, researchers can better analyze how each of these factors contributes to changes in irritability.