If d = 0.28,then we conclude that mean scores in some population have shifted 0.28 standard deviations below the mean.

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Quizplus · Accepted Answer

The statement seems to refer to a value (d) that could be interpreted as a measure of effect size or difference, such as Cohen's d. However, Cohen's d specifically measures the difference between two means in terms of standard deviations, not a shift in the mean of a single population. Saying "mean scores in some population have shifted 0.28 standard deviations below the mean" misinterprets what such a statistic represents.

If D = 028,then We Conclude That Mean Scores in Some Population Have