What is a threat to the internal validity of an experiment in which it is unclear if natural changes and/or personal development led to a given experimental outcome?

a. Testing effects
b. External validity
c. Sample selection bias
d. Maturational effects


d. Maturational effects

Psychology

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Forgetting events prior to the time of brain damage is a characteristic of ____ amnesia.

A. retrograde B. anterograde C. proactive D. procedural

Psychology

Viewing a psychological disorder as an extreme case of otherwise normal behavior reflects the _____

a. dimensional view b. medical model c. categorical view d. biopsychosocial model

Psychology

The numeral 0 on a properly adjusted weight scale (that is, a typical bathroom

scale) corresponds to the complete absence of weight. Similarly, the numeral 0 on an IQ scale corresponds to the complete absence of intelligence. (a) true (b) false

Psychology

__________ is one of the few serious inherited disorders caused by a dominant allele

a. Sickle-cell disease c. Turner's syndrome b. Phenylketonuria d. Huntington's disease

Psychology