Limitations of group designs include
A) the need for a large number of subjects.
B) an overly strong focus on individual results.
C) an inability to measure interaction effects.
D) All of these are correct.
Question 2In which of the following designs would you NOT expect to have random assignment to groups?
A) A simple-comparison design
B) A factorial design
C) A comparative design
D) None of these are correct.
Question 3In which of the following studies would you expect to find a control group?
A) Case study
B) Survey
C) A factorial design
D) Naturalistic observation
Question 4A(n) _____is a type of group design in which the species of animals within the study constitutes one of the independent variables.
A) evolutionary design
B) comparative design
C) no-treatment design
D) 2 x 2 design
Question 5A new teaching method is being tested on students. Three age groups of students will receive either the new method or a standard (control) method. If the new method is only effective on the youngest age group of students, you would say that there is _____between the effects of the teaching method and the effects of age.
A) no relationship
B) an interaction
C) a partial effect
D) a control effect
Question 6In a 2 x 2 factorial group design, there are
A) two treatment groups.
B) two independent variables and two dependent variables.
C) two independent variables.
D) two dependent variables.
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