Shyla conducted an experiment. She went to the student union and asked people if they would like to be subjects in her study. She decided to ask only those people who smiled at her. Is this an appropriate way to select subjects?

A. Yes-since these individuals smiled and are likely to be cooperative
B. Yes-the student union has a diverse group of people
C. No-it is not random selection
D. No-Shyla failed to assign her subjects to groups first

Answer: C

Psychology

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The theory that processing in all parts of the nervous system, including the brain, is less efficient is called

a) dendrite/axon theory. b) peripheral slowing hypothesis. c) generalized slowing hypothesis. d) decreased myelination theory.

Psychology

Although eye color is typically considered to be determined by dominant-recessive allelic forms of a single gene, other genes may influence it as well. In this case, eye color may be considered a _________ trait

a. phenotypic c. heterozygous b. polygenic d. codominant

Psychology