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Eduncle posted an MCQ
December 21, 2019 • 21:42 pm 0 points
  • UGC NET
  • Education

Which of the following cannot have a negative value ?

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    Eduncle Best Answer

    The multiple correlation cannot have a negative value: unlike the Pearson correlation, which ranges in value from – 1 to + 1, R can vary only within the range from 0 to + 1, inclusive. This is because even if the original correlation had been negative, the slope of the regression line would also have been negative, so that correlation between Y and the estimates of Y from regression would still have been positive.

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