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Which of the following is true about correlational analyses? All of the data should come from...

Which of the following is true about correlational analyses?

All of the data should come from a single population

Data must be measured at the ratio level for these analyses to be valid

The range of values should be truncated or shortened in order for these statistical procedures to work

Data from groups that are different in some way are preferred in these analyses

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Answer #1

The statement that is true about correlational analyses -

ans-> ii) Data must be measured at the ratio level for these analyses to be valid.

Correlation analysis is a method of statistical evaluation used to study the strength of a relationship between two, numerically measured, continuous variables (e.g. height and weight). This particular type of analysis is useful when a researcher wants to establish if there are possible connections between variables.

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