CHI_SQUARE

CHI_SQUARE - X2 = (O E)2 E 04/26/11 5 O = observed...

Info iconThis preview shows pages 1–9. Sign up to view the full content.

View Full Document Right Arrow Icon
04/26/11 1 CHI SQUARE Myril Hillman, Ph.D.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
04/26/11 2 Chi Square: Test of Independence: Is there a significant difference between “expected” and “observed” frequencies?
Background image of page 2
04/26/11 3 Assumptions Random samples (big R) Not normal curve distribution Variables are qualitative Nominal/ordinal data: counts Frequencies (counts) in cells greater than 5
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
04/26/11 4 How to do it: formula Chi square: (observed –expected) squared divided by expected
Background image of page 4
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 6
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 8
Background image of page 9
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: X2 = (O E)2 E 04/26/11 5 O = observed frequency E = expected frequency 04/26/11 6 Example Time urgency completing task for men vs. women 04/26/11 7 Degrees of Freedom (#Rows 1)(#Columns 1) 04/26/11 8 Choose alpha level 04/26/11 9 Look up What critical value of chi square did you need. Is your chi square as big or bigger? If so, it is significant...
View Full Document

Page1 / 9

CHI_SQUARE - X2 = (O E)2 E 04/26/11 5 O = observed...

This preview shows document pages 1 - 9. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online