correls2 - 031:010 - Research Methods in Psychology Spring,...

Info iconThis preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon
031:010 - Research Methods in Psychology Spring, 2010 Feb 25 th 1
Background image of page 1

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

View Full DocumentRight Arrow Icon
Recap on correlations can be calculated between any two variables vary between - 1.00 and + 1.00 and use symbol r have no units, so can always be compared provide a measure of the linear relationship (only) also provide a measure of “explained” variance r 2 are greatly affected by the range of values cannot be applied outside the range 2
Background image of page 2
Outline Directionality Third Variables Quasi-Experiments (differential designs) 3
Background image of page 3

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

View Full DocumentRight Arrow Icon
Directionality ( of correlations ) assume there’s a correlation between X and Y e.g., X = watching violent TV; Y = being violent it could be that X causes Y X → Y but it could also be that Y causes X Y → X this is the “directionality problem” 4
Background image of page 4
of correlations ) How do you determine the actual direction of causation? answer: run a cross-lagged correlation study
Background image of page 5

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

View Full DocumentRight Arrow Icon
Image of page 6
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 13

correls2 - 031:010 - Research Methods in Psychology Spring,...

This preview shows document pages 1 - 6. Sign up to view the full document.

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