If a Study Lacks External Validity, It Necessarily Lacks Internal

question 85

True/False

If a study lacks external validity, it necessarily lacks internal validity.

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Definitions:

Lithium

A chemical element used as a medication to treat and prevent episodes of mania in people with bipolar disorder.

Bipolar Disorder

A mental health condition characterized by extreme mood swings, including episodes of mania and depression.

Brain-Derived Neurotrophic Factor (BDNF)

A protein in the brain and nervous system that plays a critical role in neuron survival, development, function, and plasticity.

Mood-Stabilizing Drugs

Medications used primarily in bipolar disorder to control mood swings, preventing both manic and depressive episodes.