HTHSCI 2S03 Lecture Notes - Lecture 9: Explained Variation, Regression Analysis, Total Variation

• School: McMaster University
• Department: Health Sciences
• Course: HTHSCI 2S03
• Professor: Mc Gillion Michael

Document Summary

In previous weeks we looked at t tests and anovas. For these methods: the iv was measured as nominal (sometimes ordinal) the dv was measured as interval or ratio (sometimes ordinal) the dv was analyzed as continuous. Both the iv and dv are measured as interval or ratio (sometimes ordinal) Both the dv and iv are analyzed as continuous. Develop an equation that can be used to predict the dv from values of the iv (regression) Measure the strength of the relationship (correlation) It is frequently desirable to learn about the relationship between two continuous variables. For example, we may be interested in studying the relationship between: Total family income and medical care expenditure. We hear all over the news and in commercials that women should consume more calcium. Bone mineral density (bmd) is how much calcium and other types of minerals are in an area of your bone. Helps health care providers determine risk for osteoporosis.