Taking a Broader Perspective: the Problem of External Validity Researchers

question 35

Multiple Choice

Taking a Broader Perspective: The Problem of External Validity Researchers can use ____ to effectively control reactivity in an experiment.

• A)aggregation
• B)control groups
• C)cover stories
• D)unobtrusive measures

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Definitions:

Fetal Heartbeat

A fetal heartbeat is the heart rate of a fetus, detectable by medical equipment, often as early as 5-6 weeks of pregnancy with ultrasound.

Second Trimester

The period of pregnancy that spans from week 13 to week 26, characterized by the continued development of the fetus and noticeable anatomical changes in the mother.

Progesterone

A steroid hormone released by the ovaries, important for regulating menstruation and maintaining the early stages of pregnancy.