Which is the best interpretation of a Pearson by Dr. Janet Forrester

Question 2 / 7: Which is the best interpretation of a Pearson correlation coefficient of 0.7?

A For each 1?-unit increase in the exposure variable, we expect a 0.7?-unit increase in the outcome
variable.

B For each 1?-unit increase in the outcome variable, we expect a 0.7?-unit increase in the exposure
variable.

C For each 1?-unit increase in the exposure variable, we expect a multiplicative increase of
0.7 in the outcome variable.

D For each 1?-unit increase in the outcome variable, we expect the exposure variable rank to
increase by a factor of 0.7.

E There is a moderately strong linear association between the exposure and outcome variables.

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Epidemiology Correlation & Regression

Author:

Dr.Janet ForresterProfessor

Tufts University School of Medicine

USA

Access: Public Instant Grading

Attribution: Janet, E.A. Forrester, Kwan Ho Kenneth Chui, Steven Cohen, Michael D. Kneeland, Alice Tang, David Tybor. Epidemiology and Biostatistics 2010. (Tufts University OpenCourseWare), http://ocw.tufts.edu/Course/65/ (Accessed 3 May, 2014). License: Creative Commons BY-NC-SA

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