Arethereanymaineffects arethereanymaineffects

Info icon This preview shows page 1. Sign up to view the full content.

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

Unformatted text preview: umstance the more complex an analysis becomes the less power there is Kinds of Research Questions Kinds of Research Questions asked by MANOVA The questions are mostly the same as ANOVA just on the linearly combined DVs instead just one DV. Are there any main effects? Are there any main effects? Holding all other effects constant, is a difference among groups greater than expected by chance? Are there any main effects? Are there any main effects? Holding constant can mean: – Controlling for other effects by averaging over them in a factorial design – Holding extraneous variables constant or counterbalancing/randomizing their effects – Using covariates to adjust the composite DV in order to create a state of “pseudo equality” Are there any main effects? Are there any main effects? Tests of main effects are orthogonal if they are completely crossed and equal samples in each cell, they are only linked by a common error term Are there any interactions Are there any interactions among the IVs? Does change in the linearly combined DV for one IV depend on the levels of another IV? For example: Given three types of treatment, does one treatment work better for men and another work better for women? If equal samples in each cell then one interaction is independent of main effects and other interactions. Which DVs are most Which DVs are most important? If there are any significant main effects or interactions, on which individual DV is there the most change (difference), if any, “caused” by the levels of the IV? You can follow a significant MANOVA with individual ANOVAs in order to see on which DV is there large, medium, small or no effect. Which DVs are most Which DVs are most important? Another procedure is t...
View Full 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