In Cross-Tabs,the Introduction of a Third Variable Can ________

question 105

Multiple Choice

In cross-tabs,the introduction of a third variable can ________.

• A)refine the association observed between the two original variables
• B)indicate no association between the two variables,although an association was initially observed
• C)indicate no change in the initial association
• D)All of the above are correct.

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Definitions:

Embryonic Period

A critical phase of development in early pregnancy, extending from fertilization to the end of the 8th week, during which the basic structures and organs of the organism begin to form.

Fetal Period

The stage of human development inside the womb from the end of the embryonic stage (approximately 9 weeks after conception) to birth.

Cross-Sectional

This type of study examines data from a population, or a representative subset, at one specific point in time.

Longitudinal Studies

Research methods that involve repeated observations of the same variables or groups over a long period of time, often used to study development or changes.