0.5 1.0 1.5 2.0 Placebo Improvement (Hamilton Scale) Drug Improvement (Hamilton Scale) 4)
0.5 1.0 1.5 2.0 Placebo Improvement (Hamilton Scale) Drug Improvement (Hamilton Scale) 4)
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.1: Measures Of Center
Problem 4GP
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Question
Antidepressants A study compared the effectiveness of
several antidepressants by examining the experiments in
which they had passed the FDA requirements. Each of
several antidepressants by examining the experiments in
which they had passed the FDA requirements. Each of
those experiments compared the active drug with a pla-
cebo, an inert pill given to some of the subjects. In each
cebo, an inert pill given to some of the subjects. In each
experiment some patients treated with the placebo had
improved, a phenomenon called the placebo effect.
Patients’ depression levels were evaluated on the
improved, a phenomenon called the placebo effect.
Patients’ depression levels were evaluated on the
Hamilton Depression Rating Scale, where larger num-
bers indicate greater improvement. (The Hamilton scale
bers indicate greater improvement. (The Hamilton scale
is a widely accepted standard that was used in each of
the independently run studies.) The scatterplot at the top
of the next column compares mean improvement levels
for the antidepressants and placebos for several
experiments.a) Is it appropriate to calculate thecorrelation ? Explain.
b) The correlation is 0.898. Explain what we have
learned about the results of these experiments.
the independently run studies.) The scatterplot at the top
of the next column compares mean improvement levels
for the antidepressants and placebos for several
experiments.a) Is it appropriate to calculate the
b) The correlation is 0.898. Explain what we have
learned about the results of these experiments.
Transcribed Image Text:0.5
1.0
1.5
2.0
Placebo Improvement
(Hamilton Scale)
Drug Improvement
(Hamilton Scale)
4)
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