A Researcher Collects Data on the Amount of Time Children

question 202

Multiple Choice

A researcher collects data on the amount of time children spend watching violent cartoons. He compares the behavior of a group of children who watch a lot of violent cartoons (Group 1) with a group of children who do not (Group 2) . He finds that children in Group 1 are more aggressive on the playground than the children in Group 2. What can the researcher conclude?

• A)There is a relationship between watching violent cartoons and aggressive behavior.
• B)Watching violent cartoons causes aggressive behavior.
• C)Aggressive behavior leads children to watch violent cartoons because they are reinforcing.
• D)Parents who reward aggressive behavior also allow their children to watch violent cartoons.

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Definitions:

T-test

A statistical test used to compare the means of two groups to determine if they are significantly different from each other.

Inference Conditions

Requirements that must be satisfied to validly use certain statistical inference methods.

Mean Annual Income

The average amount of money earned per year by an individual or household.

Standard Deviation

This statistical index measures how spread out the numbers in a data set are.