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QUESTION 1 There are different types of correlation one can use based on the types of...

QUESTION 1

  1. There are different types of correlation one can use based on the types of variables being examined. When conducting an analysis, when do you need to use Spearman’s rho instead of Pearson’s r?

    When the data are nominal or ordinal.

    When the data are ratio or interval.

    When the data are random.

    Spearman's rho should never be used for correlations.

10 points   

QUESTION 2

  1. True/False. If you found a strong positive correlation between the number of hours learners spent reading their textbooks and their quiz scores, you could conclude that reading the textbook caused better performances.

    True

    False

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question 1)

When the data are nominal or ordinal

question 2)

false

correlation coefficient does not imply causation. it means if there is a significant correlation coefficient between two variables then it does not mean that there is cause and effect relationship between two variables.

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