PSY 520 WEEK 1 EXERCISES/ GCU PSY 520

REVIEW QUESTIONS 2 1.8 A) Experiment- An independent variable is the number of chimps put together in a cage. Confounding variables of this experiment would be gender of the chimps being put together, the sizes of the cages, and the amount of time they are held in the cages. B) Experiment- An independent variable is the difference in professions and there are no existing confounds. C) Experiment- An independent variable is classifying each tribe based on their sexual codes and the behaviors towards other tribes. D) Observational study- an investigator assigns college students and measures the amount of time it takes each group E) Experiment- an independent variable would be the number of months of reported formal education F) Observational Study- an investigator allows the college students to choose to participate in a GRE test-taking workshop or a controlled non-test-taking workshop and then compares the two. G) Observational Study- a social scientist assigned to college students by a panel of peers to document scores on a paper-and-pencil test of anxiety. H) Observational Study- survey between male and females based on questions I) Experiment- independent variables would be the four-year old’s that delay eating one marshmallow to the non-delayers. 1.9 A) These studies are experiments based on testing the duration of infant breastfeeding and intelligence in young adulthood. The study was conducted on men and women, born in different years and divided into the length of time they were breastfed by mothers. REVIEW QUESTIONS 3 B) Two potential confounding variables controlled by breastfeeding experiments would be the mother’s information, such as age, height, and weight during pregnancy. The mother’s health before and after birth, does the mother smoke? Another confounding variable would be the birth of the baby, such as delivery, natural or c-section, weight and length of the baby at birth. Chapter 2 Review Questions 2.14, 2.17, and 2.18 2.14 A) 1, 4, 2, 3, 3, 1, 6, 7, 4, 3, 3, 9, 2, 4, 2, 2, 3, 2, 3, 4, 4, 2, 3, 3, 5 Sorted Array: 1, 1, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 5, 6, 7, 9 Frequency table 1: 2