Jill Collects Data on the Participants in Her Study by Writing

question 15

Multiple Choice

Jill collects data on the participants in her study by writing down a full narrative description of everything they do.Jill is using a(n)

• A)narrative record.
• B)action record.
• C)checklist.
• D)static checklist.

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Definitions:

E(XY)

The expected value of the product of two random variables, indicating their joint variability.

Coefficient of Correlation

A measure that indicates the extent to which two variables fluctuate together. A value closer to 1 or -1 indicates a strong relationship, while a value near 0 suggests no relationship.

X and Y

Typically used to represent independent and dependent variables in a mathematical function or data set, respectively.

Marginal Probability

is the probability of an event occurring without considering other related events.