71) A sample that is drawn in such a way that every member of a population has an equal probability of being selected to the sample is a(n) ________ sample. A) strain B) selection C) in vivo D) random 72) In research, the target group you want to find out about, such as the “average Canadian teenager,” comprises the research ________. A) sample B) population C) cluster D) set 73) In research, the subjects or individuals who are observed or who participate in the research are said to comprise a research ________. A) sample B) population C) cluster D) set 74) Dwayne conducts a study on drinking habits among college students. Since there are too many college students for him to directly observe all of them, he randomly selects a group of 250 college students to represent all college students. Dwayne’s study finds that 90% of college students drink regularly, and 10% of those who drink will eventually become alcoholics. In this study, the 250 people Dwayne actually observes are called the research ________. A) cluster B) set C) population D) sample 75) Brandon conducts a study on drinking habits among college students. Since there are too many college students for him to directly observe all of them, he randomly selects a group of 250 college students to represent all college students. Brandon’s study finds that 90% of college students drink regularly, and 10% of those who drink will eventually become alcoholics. In this study, the target group of all college students represents the research ________. A) cluster B) set C) population D) sample 76) A random sample is a sample in which ________. A) every member of a target population is chosen to be in the sample B) members of the sample are chosen by chance from the general population, whether or not they are members of the target population C) every member of the target population has an equal chance of being chosen to be in the experimental sample D) members are prescreened to assure suitability for the study and are selected based on researcher decisions 77) Epidemiological studies ________. A) neither point to potential causal factors nor control for selection factors B) point to potential causal factors but do not control for selection factors C) control for selection factors but do not point to potential causal factors D) control for selection factors and point to potential causal factors 78) ________ studies attempt to disentangle the roles of heredity and environment in determining behaviour. A) Case B) Analogue C) Kinship D) Naturalistic observation 79) The science of heredity is called ________. A) kinesics B) proxemics C) neuroleptics D) genetics 80) The sum total of traits that one inherits from one’s parents is one’s ________. A) proband B) genus C) phenotype D) genotype