psych 5-ucsb-fall 2011-lecture-chapter16

psych 5-ucsb-fall 2011-lecture-chapter16 - today...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
today Correlation New > Old
Background image of page 1

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

View Full DocumentRight Arrow Icon
correlation a technique that is used to describe and quantify the relationship between two variables useful both as a descriptive statistic and as an inferential statistic correlational study the two variables are observed, not manipulated reasons to use correlation Validity If you want to verify that a new measurement is assessing a known construct, you can test the extent to which the new measurement is related to a measurement that is accepted to index the desired construct Reliability The degree to which the measurement produces the same (or nearly the same) scores when the same individuals are measured under the same circumstances Theory veriFcation Theories often make predictions about how two variables should be related Prediction If two variables are related, then knowing one will help you estimate the other assessing correlations Qualitative approaches Scatter plot Quantitative approaches Pearson correlation coefFcient r
Background image of page 2
qualitative approach The scatterplot
Background image of page 3

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

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 10

psych 5-ucsb-fall 2011-lecture-chapter16 - today...

This preview shows document pages 1 - 4. Sign up to view the full document.

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