SOLVED

111 Which research design tests groups of subjects of different ages, all at the same time? a. cross-sectional design b. longitudinal design c. sequential design d. age cohort design 112. A researcher interested in studying how friendship changes with age asks students in first-, third-, fifth-, seventh-, ninth-, and eleventh-grades to complete a questionnaire. What type of research design is this researcher using? a. sequential-cohort b. longitudinal c. cross-sectional d. age cohort 113. A researcher studies a group of 1-year-olds, 4-year-olds, and 7-year-olds for one day, and compares the different age groups in terms of their independence. What research design is the researcher using? a. longitudinal b. cross-sectional c. sequential-cohort d. age cohort 114. If a researcher combined the method used in a cross-sectional design with that used in a longitudinal design, the result would be called: a. an experiment b. a mixed design c. a correlational design d. a sequential-cohort design 115. The sequential-cohort design combines the longitudinal and cross-sectional designs by: a. testing several age groups at several different times b. testing a single individual in a number of situations c. matching people of different ages or cohorts on a number of relevant factors d. testing a different cohort each year of the sequence 116. A researcher collects data on a group of children age 4 and another group age 6. He then waits three years, and collects similar data on these same groups of children, who now are age 7 and 9. His research design is an example of: a. a sequential-cohort design b. a cross-sectional design c. a longitudinal design d. a correlational design 117. A researcher studies how individuals born during the 1940s compare to individuals born during the 1970s with regard to political participation. The groups of individuals are called: a. reference groups b. alliances c. support groups d. cohorts 118. The strength and direction of a relationship between two factors is represented by a statistic called a(n): a. empirical coefficient b. experiment coefficient c. correlation coefficient d. causal coefficient 119. Suppose a researcher wishes to study the relationship between a high-protein diet and school performance. She asks students to record their eating habits for a week and compares their protein consumption to their grade point average in school. If she finds that students who eat more protein generally get better grades, it would be appropriate to conclude that she has identified a: a. positive correlation b. negative correlation c. causal relationship d. “zero order” correlation 120. Suppose you find that as children get older, they have larger vocabularies. You have found a _____________ correlation between age and vocabulary size. a. sequential b. confounded c. negative d. positive