The Three Causes of Placenta Previa Are ________________, _______________, and _______________________

question 11

Short Answer

The three causes of placenta previa are ________________, _______________, and _______________________.

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Definitions:

Dependent Variable

A variable that an experimenter predicts will be affected by manipulations of the independent variable.

Experimenter's Manipulations

The deliberate changes or variations introduced by researchers in an experiment to investigate their effects on the outcome.

Extraneous Variable

Any variable that is not intentionally studied in the experiment which can affect the outcome of the research if not controlled.

Confounding Variable

An outside influence that changes the effect of a dependent and independent variable. This extraneous influence is used to influence the outcome of an experimental design.