A health psychologist decides to study the effects of class in school (freshman, sophomore, junior, senior) on the

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Home>Mathematics homework help>Numerical analysis homework help>A health psychologist decides to study the effects of class in school (freshman, sophomore, junior, senior) on the

A health psychologist decides to study the effects of class in school (freshman, sophomore, junior, senior) on the number of hours spent studying.

1) what is the independent variable?

2) dependent variable?

3) how many levels would the independent variable have?