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A researcher is interested in studying cooperative and competitive behavior in siblings. How might he or she use 1) systematic observations, and 2) self-reports to measure sibling behavior? Explain each type of measure, and give an example of how each could be used to measure cooperation and competition between siblings.
Security's Return
The total gain or loss experienced on an investment over a specified period, expressed as a percentage.
Expected Return
The anticipated return on an investment, reflecting the probabilities of various outcomes.
Covariances
A measure indicating the extent to which two variables change together; if the variables tend to show similar behavior, the covariance is positive.
Security Returns
Represents the profit or loss generated on an investment over a particular period of time.
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