ors identiy уре Ccur aim dally 1ul Il either anti-depressant medication or stress treatment exercises help eliminate these types of headaches and compare four treatments in the experiment: antidepressant alone, placebo alone, antidepressant plus stress management, and placebo plus stress management. 480 subjects diagnosed with "chronic tension-type headaches" by their doctors were first blocked by gender, then blocked by age, and finally randomly assigned to one of the four treatment groups. Four treatment groups are created with various combinations of anti-depressant vs. placebo and stress management or not. 480 subjects were equally divided into four groups allowing for 120 subjects receiving each treatment. Subjects were blocked to reduce the effects of two identified confounding variables: gender and age. Subjects were blocked by gender, then age, but ultimately randomly assigned to one of four treatment groups. :: Comparison :: Random Assignment :: Control :: Replication

ors identiy уре Ccur aim dally 1ul Il either anti-depressant medication or stress treatment exercises help eliminate these types of headaches and compare four treatments in the experiment: antidepressant alone, placebo alone, antidepressant plus stress management, and placebo plus stress management. 480 subjects diagnosed with "chronic tension-type headaches" by their doctors were first blocked by gender, then blocked by age, and finally randomly assigned to one of the four treatment groups. Four treatment groups are created with various combinations of anti-depressant vs. placebo and stress management or not. 480 subjects were equally divided into four groups allowing for 120 subjects receiving each treatment. Subjects were blocked to reduce the effects of two identified confounding variables: gender and age. Subjects were blocked by gender, then age, but ultimately randomly assigned to one of four treatment groups. :: Comparison :: Random Assignment :: Control :: Replication

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.6: Summarizing Categorical Data

Problem 28PPS

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