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.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.
Independent variables which are undesirable and may influence the DV in a random or systematic way which we must try and control. Without some control of these they may add ERROR to the experiment. Systematic extraneous variables (counfounds) are a big problem!
Controlling Extraneous Variables
Which is easiest to learn?
Bower had subjects learn these words in a structured hierarchy or in an unstructured random list