variables

• what is the IV variable 


  independent variable, change
• what is the DV variable


  dependent variable, same
• what is cause and effect?


  the only thing that should change an experiment is the change in the IV which affects the DV
• What are extraneous variables


  extra variables you can plan and predict but they're unwanted
• what is a co-founding variable?


  a variable you cant predict or plan
• what is a demand characteristic


  any cue from the researcher that may be interpreted by ppts as revealing the pupose of the investigation.
• what are the 2 effects?


  please u effect -you want to support the researcher and act how you think they want you to

  screw u effect- you under perform to hinder the results of the experiment