Final answer:
During World War II, 18 million potential service members were screened by the US military, with 4,000 to 5,000 disqualified for homosexuality. In a Photovoice research project, 22 individuals participated. In a study, 25 students gave an estimate of 400 individuals in the original population.
Step-by-step explanation:
The question pertains to the number of people who went through a screening process during different scenarios. The first scenario mentions the US military during World War II, where 18 million potential service members underwent psychological examinations to assess their sexual orientation, and only about 4,000 to 5,000 were disqualified for homosexuality.
The second scenario involves a Photovoice research project, in which 22 individuals participated, including clients, staff members, and evaluators.
Finally, in a study related to student habits, 25 randomly selected students were questioned about the number of movies they watched the previous week, which gave an estimate of 400 individuals in the original population.