what is the research design in which subjects are exposed to more than one condition that is administered in a randomized order a. pretest design b. pretest-posttest design c. crossover design d. observational design
Option C is correct as in crossover experimental design the sbjects are generally exposed to more than one condition that is administered in a randomized order and the subjects are utilized as their own control for the study.
what is the research design in which subjects are exposed to more than one condition that...
6. Typically, when comparing a within-subjects design to a between-groups design which of the following describe their differences in error variance? a. Within-subjects designs results in less error variance than between-groups. b. A within-subjects design results in more error variance than a between-groups design. C. A within-subjects design results in the same amount of error variance as a between-groups design d. There is no error variance in a within-subjects design, whereas a between- groups design does present some error variance....
Is there more than one independent variable in a mixed subjects factorial research design?
Which of the following research designs is the correct one to use for comparing self-esteem scores in children from divorced families to self-esteem scores in children from families with no divorce? a. Pretest-posttest nonequivalent control group design. b. Time-series design. c. Differential research design d. Pretest-only nonequivalent control group design.
Recall bias occurs when? a. the exposed and non-exposed subjects in a cohort study know their exposure status and differentially recall their exposure histories b. researchers are not blinded and they recall which subjects were cases and which subjects were controls. c. subjects in one arm of a randomized controlled trial recall their treatment compliance better than subjects in the other arm of the randomized controlled trial. d. cases and controls in a case control study know their disease (outcome)...
what is the design of renees study?
a. posttest only
b. one group
c. pretest posttest
d. within groups
what is the main threat to internal validity?
a. order effects
b. constancy
c. a counfounding variable
d. a selection threat
how could renee redesign her study to prevent the threat to
internal validity from the previous question?
a. counterbalance the order
b. use elimination
c. use constancy
d. use random assignment
Renee (a 24-year-old Master's student) was studying attitudes toward...
7. An advantage of the matched groups research design is that it: provides a less ambiguous interpretation of the results than the repeated measures design. has more statistical power than the between-groups design with random assignment. requires fewer research subjects than the repeated measures design. has more statistical power than the repeated measures design. 8. One way to increase the statistical power within a between-groups design is to: have each participant contribute two data points per condition. match participants on...
Using the ________ design, a researcher measures a dependent variable for one group of participants following a treatment. Select one: a. non-equivalent control group Incorrect b. control time series c. one-group pretest-posttest d. one-group posttest only
Research designs in which two or more treatments are explored simultaneously are referred to as what? A factorial designs B multiple variable designs C completely randomized designs D randomized block designs
Answer the following parts: Visual and auditory games study: A researcher wants to know which type of games: 1) visual games, 2) auditory games, or 3) games involving both visual and auditory engagement help the most in delaying cognitive losses in 70 to 80 year-old individuals with Alzheimer’s disease. The participants in the visual stimulation group will be 30 volunteers recruited in Nursing Home A; participants in the auditory stimulation group will be 30 volunteers recruited in Nursing Home B;...
A quasi-experimental or nonexperimental research design that compares different groups of participants is called a(n) one that compares the same group of participants is called a(n) whereas a. pre-post design; nonequivalent groups design. b. nonequivalent groups design; pre-post design. c. within-subjects experimental design between-subjects experimental design. d. between-subjects experimental design, within-subjects experimental design