Explain your answer 95 Answer This is a randomized block design Explanations

Explain your answer 95 answer this is a randomized

This preview shows page 21 out of 21 pages.

completely randomized design or a randomized block design? Explain your answer.95)Answer:This is a randomized block design. Explanations will vary.96)Define observational study and experiment. Define the terms "treatment group" and"control group" as part of your answer.96)Answer:In an observational study, we observe and measure specific characteristics, but wedon't attempt to manipulate or modify the subjects being studied. In an experimentwe apply some treatment and then proceed to observe its effects on the subjects. Inthe experiment, the group receiving the treatment is called the treatment group. Thecontrol group is the group that is not given the treatment.97)A study was conducted to evaluate the effectiveness of a new diet pill for men. A group of3000 men were involved in the study. Of these 3000 men, 2311 took the diet pill and 889were given a placebo. Identify the treatments, the treatment group, and the control group.97)Answer:Treatments: diet pill and placeboTreatment group: the 2311 men who took the diet pillControl group: the 889 men who took the placebo98)Describe a double-blind experiment and explain why blinding is used. Define the term"placebo effect" as part of the answer.98)Answer:A double-blind experiment is one in which neither the subjects nor the researchersknow who is getting the treatment. Blinding is when the subject does not knowwhether he or she is receiving a treatment or a placebo. Blinding is used tocounteract the placebo effect in which an untreated subject believes he or she isreceiving a treatment and reports an improvement in symptoms due to this belief.21

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture