1 / 2

Variables

Variables. A variable, as opposed to a constant, is anything that can vary, or be expressed as more than one value, or is in various values or categories (Simon, 2006). Quantitative designs have at least two types of variables: independent and dependent (Creswell, 2004).

ivrit
Download Presentation

Variables

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Variables • A variable, as opposed to a constant, is anything that can vary, or be expressed as more than one value, or is in various values or categories (Simon, 2006). • Quantitative designs have at least two types of variables: independent and dependent (Creswell, 2004). • independent variable (x-value) can be manipulated, measured, or selected prior to measuring the outcome or dependent variable (y-value).

  2. Variables • Intervening or moderating variables affect some variables and are affected by other variables. • They influence the outcome or results and should be controlled as much as possible through statistical tests and included in the design (Sproull, 1995; 2004). • (ANCOVA) may be used to statistically control for extraneous variables. This approach adjusts for group differences on the moderating variable (called a covariate) that existed before the start of the experiment.

More Related