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Lecture 2 - Behavioral Research methods Pt 2

# Howoftendoyoubreakthelawby speeding

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Unformatted text preview: le A What does a correlation What does a correlation look like? Variable B Types of correlations •Positive •As one variable goes UP, the other goes UP too •As one variable goes DOWN, the other goes DOWN too GPA •e.g. Attendance & GPA # OF DAYS ATTENDED Types of correlations •Negative •As one variable goes UP, the other goes DOWN GP A •e.g. Alcohol consumption & GPA # OF DRINKS •e.g. grades & hair length •No relationship GRADES Types of correlations HAIR LENGTH Correlation • Examples • Which is strongest? a) b) c) d) r = +.83 r = ­.91 r = +.35 r = ­.14 Correlation • Examples • Which best fits the description of “a weak negative correlation”? a) r = +.64 b) r = ­.18 c) r = +.51 d) r = ­.76 Examples Examples Positive, negative or no correlation? ­ ­ A Amount of time spent lifting weights Muscle mass B C Examples Positive, negative or no correlation? ­ Temperature ­ Amount of clothing worn A B C Examples Positive, negative or no correlation? – Ice Cream Eaten – # of Violent Crimes A B C...
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