Which of the following statements is not true about randomized control trials (RCTs)?
A. Secondary outcomes may be defined, but must be subordinate to a clearly stated primary outcome.
B. In RCTs, researchers are increasingly being required to enter their work into a public trial registry before they begin work.
C. RCTs generally require investigators to define a single primary outcome.
D. Research based on RCTs are generally not eligible for publication in prestigious professional journals.
Answer: D
You might also like to view...
In order to meet the criteria for obsessive-compulsive disorder, a person's compulsive rituals must take more than one hour each day. Moreover, the symptoms cannot be due to drug use or the presence of other disorders. What aspects of the DSM system are i
a. reliable and valid criteria b. primary and secondary criteria c. inclusion and exclusion criteria d. etiological diagnosis and assessment
Extensive practice at working crossword puzzles improves skill at working those puzzles, but has little effect on other types of memory or problem solving. Apparently the practice increases what?
a. Fluid intelligence b. Crystallized intelligence c. Both fluid and crystallized intelligence d. Neither fluid nor crystallized intelligence
In Burger's partial replication of Milgram's obedience study, how far did most people go?
a. Most people continued to the maximum he permitted, 150 volts. b. Most people quit at the first complaint by the learner, at 90 volts. c. Most people administered one or two shocks and then quit. d. Most people refused to deliver even the first shock.
Researchers conducted a study on "inattentional blindness" in the central gathering plaza of a university campus to determine whether individuals would notice unusual events. For half of the observation periods, a clown rode a unicycle in the plaza; in the other half of the observation periods, two costumed confederates acted a scene from Hamlet. Trained research assistants asked individuals who had walked through the plaza if they had noticed anything unusual. What type of observational study does this study represent?
A. field experiment B. structured observation C. naturalistic observation D. reactive observation