The selection of subjects in the three historical 1950 studies conducted in Stirling County, Midtown Manhattan, and Baltimore was different from previous investigations because participants were:
a. chosen at random from the community
b. chosen at random from the psychiatric population
c. selected from incarcerated individuals
d. representative of the country at large
A
The selection of subjects in the three historical 1950 studies differed from previous studies because participants were chosen at random from the communities. Random selection of subjects reduced the potential for bias.
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