PSYC 255 QUIZ 5 PRACTICE SCRIPT 2026
QUESTIONS WITH ANSWERS GRADED A+
⫸ A large sample is probably more representative than a small sample.
Answer: True
⫸ It is always necessary to have at least 25-30 participants in a study.
Answer: False
⫸ Selection bias is likely to produce a sample with characteristics that
are noticeably different from those in the population. Answer: True
⫸ If you cannot list all the individuals in the population, then you
cannot take a simple random sample. Answer: True
⫸ When a researcher does not know the exact number of individuals in
the population, it is necessary to use a nonprobability sampling method.
Answer: True
⫸ One requirement for a simple random sample is that the likelihood of
selecting one specific individual does not depend on which other
individuals are selected for the sample. Answer: True
⫸ Simple random sampling guarantees that the sample will be
representative of the population. Answer: False
QUESTIONS WITH ANSWERS GRADED A+
⫸ A large sample is probably more representative than a small sample.
Answer: True
⫸ It is always necessary to have at least 25-30 participants in a study.
Answer: False
⫸ Selection bias is likely to produce a sample with characteristics that
are noticeably different from those in the population. Answer: True
⫸ If you cannot list all the individuals in the population, then you
cannot take a simple random sample. Answer: True
⫸ When a researcher does not know the exact number of individuals in
the population, it is necessary to use a nonprobability sampling method.
Answer: True
⫸ One requirement for a simple random sample is that the likelihood of
selecting one specific individual does not depend on which other
individuals are selected for the sample. Answer: True
⫸ Simple random sampling guarantees that the sample will be
representative of the population. Answer: False
