1Based on the following scientific notation, what is the study design?
ROX1OX2O
ROX2OX1O
- randomized crossover design
- single suject design
- randomized factorial controlled trial
- randomized controlled trial
2which scientific notation is consistent with a single-subject design
- ROX1OX2O
ROX2OX1O - NOXO
NOO - ABABA
- ROX1fO
ROX2fO
ROX1mO
ROX2mO
3A researcher is interested in studying the efficacy of a joint protection training program for people with arthritis. Participannts are randomly assigned to the joint protection training program or a treatment as usual condition. In the same study, one-half of the participants in each group randomly receive an orthotic and the other one half do not. What is the type of design
- randomized controlled trial
- randomized crossover design
- randomized factorial design
- retrospective design
4what type of effect is most important for determing if the intervention group improved significantly more than the control group
- interaction effects
- group effects
- between effects
- within effects
5A researcher uses chart records from individuals receiving patient services and compares those who received mirror therapy with those who did not. What type of design is described in this scenario?
- randomized controlled trial
- randomized crossover design
- retrospective group comparison design
- pretest-posttest without a control
6If a researcher examines the time effects in a study by comparing pretest and posttest scores, this could also be described as a:
- interaction effect
- group effect
- within subjects effect
- between subjects effect
7A cluster randomized controlled trial would be classified as what level of evidence
8what potential benefit may a nonrandomized controlled trial have over a randomized controlled trial?
- you can be more confident that the intervention actually resulted in the improvement with a nonrandomized controlled trial
- the nonrandomized controlled trial migh be more similar to real world practive
- the difference in settings is not typically a design concern
- it is more likley that the groups will be equivalent at baseline with a nonrandomized controlled trial
9All other things being equal, which of the following designs requires a larger sample size
- randomized controlled trial
- crossover design
- single subject design
- factorial design
10A crossover design is considered to be at the same level of evidence of what other design
- single subject design
- pretest-posttest without a control
- nonrandomized controlled trial
- randomized controlled trial