The double - blind technique involves:
Correct answer: D. a procedure in which neither patients nor health care staff know whether a given patient is receiving a drug or placebo
- A. the simultaneous use or two or more therapeutic treatments in the hope that at least one will be effective.
- B. replacing a positive response to a harmful stimulus with a negative response.
- C. blocking anxiety - arousing material from consciousness during therapy.
- D. a procedure in which neither patients nor health care staff know whether a given patient is receiving a drug or placebo
Explanation
In a double-blind procedure, neither the participants nor the researchers or healthcare staff know who receives the active treatment and who receives the placebo. This reduces expectancy and observer bias.
Last updated
Practise Research Methods and Statistics
263 free Research Methods and Statistics MCQs from Psychology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Psychology questions like this
Psychology is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
Related questions
A between subjects design is less efficient than a within subjects design because ____________?
A college administrator is trying to assess whether an admissions test accurately predicts how well applicants will perform at his school. The administrator is most obviously concerned that the test is:
A common method for selecting representative samples is to select them.
A concordance rate indicates:
A ___________ contact is made to enable the researcher and those with whom he is working to get to know themselves and one another better: