Greitemeyer and His Colleagues Have Conducted a Number of Studies

question 159

Multiple Choice

Greitemeyer and his colleagues have conducted a number of studies to examine the effects of video games on helping. They have some participants play a prosocial video game and others play a neutral video game. The independent variable of this research is the __________.

• A) degree of helping
• B) type of video game
• C) participants
• D) temperature of the room where they play the game

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Definitions:

Degrees of Freedom

The number of independent values or quantities which can be assigned to a statistical distribution or to a mechanism, minus the number of parameters that constrain these values.

Student t Distribution

A probability distribution that is used to estimate population parameters when the sample size is small and the population variance is unknown.

Parameter v

In statistics, it can refer to a parameter associated with a specific distribution or model, often used to denote degrees of freedom in certain distributions.

Variance V(t)

A statistical measure of the dispersion of a set of data points in a data series around the mean, denoted as V(t) when considering time-series data.