In a Carefully Controlled Experiment, the Only Possible Cause for Any

question 645

Multiple Choice

In a carefully controlled experiment, the only possible cause for any effect noted in the dependent variable is the

• A)independent variable.
• B)extraneous variable.
• C)random assignment.
• D)random selection.

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Definitions:

Congenital

A condition or trait present from birth, which can result from genetic factors or environmental influences during pregnancy.

Malformation

An abnormality in the formation, shape, or structure of a part of the body, often present from birth.

Preexisting

Already existing before a specified point in time or before an analysis, event, or assessment.

Amniocentesis

A medical procedure used in prenatal diagnosis where a small amount of amniotic fluid is sampled from the amniotic sac around a developing fetus.