STtTO Windows Macros True or false: Any unknown variable that changes along with
ID: 3445199 • Letter: S
Question
STtTO Windows Macros True or false: Any unknown variable that changes along with the level of the IV and exerts an effect on the DV without the knowledge of the researcher is called a confounding variable a) True b) False 15. The best way to achieve a survey sample that is truly representative of the population from which it is drawn is a through a random process known as a) Stratified sampling b) Nonbiased sampling c) Simple sampling d) Probability sampling 16 ' When a statistic is misquoted or misunderstood, and then reported in a different source in its (now altered) form, it is called a statistic, if that statistic is then reported in so many different sources that it may become impossible to trace its origin it is called a 17. statistic. a) mutated, laundered b) laundered; mutated In the case described in lecture, "Lawrence Batson" was described as a short, slender man, not particularly muscular, who enjoyed reading 19h century British poetry and the published correspondence of great authors. In choosing his likely profession, we used critical thinking to determine that Lawrence was more likely to be....... a) a truck driver than a classics professor b) aclassics professor than a truck driver c) alibrarian than a high school principal d) a high school principal than a librarian 18. 19. A is a relatively small group selected to represent a much larger group called a a) population; sample b) population control group c) sample; population d) sample, control group 20. In class, Dr. Okami described a study of the health benefits of yoga. In that study, a group of people were assigned to practice yoga for six months. Afterward, their blood pressure, stress levels, and quality of sleep were measured, and the results compared to what had existed prior to their practicing yoga. Why would such a study contribute virtually no useful information about the health benefits of yoga? a) The study is purely anecdotal b) The study lacks external validity because of poor operational definitions c) The study lacks control groups and does not control for confounding variables. d) The study is descriptive only.Explanation / Answer
15. True. A variable that affects the relationship between the independent and dependent variable without the knowledge of the researcher is called a confounding variable.
16. The correct answer is Option D. Probability sampling is the best way to achieve a truly representative sample of the population.
17. The correct answer is Option A. A mutated statistic is misquoted or misrepresented whereas a laundered statistic is reported in many different ways.
18. The correct answer is Option B. It is likely that lawrence is more likely to be a classics professor than a truck driver.
19. The correct answer is Option C. A sample is a relatively small group that represents a larger group called the population.
20. The correct answer is Option C. This type of study lacks control groups and does not control for confounding variables.
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