Project 1 - PHS vs USC study

Project 1 - PHS vs USC study - Part I : The PHS Define:...

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Part I : The PHS Define: Sample:    The 22,071 physicians who were selected from the pool of  33,223 willing and eligible physicians.  All were aged 40-84 and were physicians  living in the US at the start of 1982. Sample Population:   All male physicians 40 to 84 years of age living in  the US at the beginning of 1982. Intended Population:   Adult males between the ages of 40 and 84 living  in the US. Determine The Type of Study :  The PHS was a Randomized Comparative  Study.  The researchers are in control of the stimulus, which means it isn’t an  observational study. In this study 11,037 participants were given aspirin while the  other 11,034 received a placebo. In randomized comparative studies not every  subject gets the same treatment. Discuss the Strengths of the Study:   This study had a very large pool of  participants, over 22,000.  This is a strength because researchers have more 
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data/results to use in their study.  It is also a double blind, placebo-controlled  study.  This means the participants and the researchers collecting the data didn’t  know who was in which group.  Not knowing whether a subject is in the control  group or experimental group makes it much harder for researchers to sway the  results in their favor.  Having a placebo-controlled group gives the researchers  something to compare the results of the experimental group to.  Another strength 
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This note was uploaded on 09/15/2008 for the course MATH 170 taught by Professor Alisonparadise during the Spring '08 term at Puget Sound.

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Project 1 - PHS vs USC study - Part I : The PHS Define:...

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