A line graph showing a frequency distribution is called a ________
a. skewed distribution
b. normal distribution
c. frequency polygon
d. frequency histogram
Answer: c
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How do the intelligence test scores (IQ) of people who completed a General Equivalency Diploma (GED) compare with people who graduated from high school?
a) GED students have slightly higher IQs compared with high school graduates. b) GED students have substantially lower IQs compared with high school graduates. c) GED students have substantially higher IQs compared with high school graduates. d) GED students and high school graduates are equally intelligent as measured by IQ.
Before beginning her experiment, Sasha explains the purpose of her research and the methods she will be using to the participating parents and their children. This is a part of the _____ process that must take place before an experiment.
a. informed consent b. review board c. debriefing d. confidentiality