Lecture 18 - Correlational_Design

Lecture 18 - Correlational_Design - Psych 301W Lecture 18...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Psych 301W – Lecture 18 Fall 09 - Wede Lecture 18– Correlational Designs Correlational research designs Used to search for and describe relationships among measured variables Terminology Predictor Variable (a.k.a. IV) Outcome Variable (a.k.a. DV) Statistical Analysis Decision Tree (Last Page of Textbook) Organizing the Data ______________________ Uses a standard coordinate system The horizontal axis indicates the scores on the predictor variable The vertical axis represents the scores on the outcome variable A point is plotted for each individual at the intersection of his or her scores on the two variables _______________________ The straight line of “best fit” drawn through the points on a scatterplot ________________________ Prediction of the dependent variable from knowledge of one or more independent variables Regression Equation bx a Y X X s s r Y Y X Y + = - + = ) ( ˆ An Example How does High School GPA relate to College GPA?
Image of page 1

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

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern