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In psychological research, investigators calculate statistics from a specific group to estimate corresponding values in a larger group. For instance, if a researcher studies $$50$$ adults with clinical depression and calculates their average number of depressive symptoms, this calculated average is a sample statistic. The researcher then uses this statistic to draw conclusions about the corresponding population parameter, which is the true average number of depressive symptoms for all adults living with clinical depression.

Example of Sample Statistics and Population Parameters

A researcher measures the average number of depressive symptoms in a group of 50 adults diagnosed with clinical depression. This calculated average is referred to as a ____.

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