Question: A researcher studies differences in social development between boys and girls at a local elementary charter school. Which way to select two independent samples did

A researcher studies differences in social development between boys and girls at a local elementary charter school. Which way to select two independent samples did the researchers choose in this example?

a. They selected a sample from two populations: from a population of boys, and a population of girls.

b. They selected one sample from the same population and randomly assigned boys and girls in the sample to groups.

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