research issues

Question 1

extraneous variables

Answer 1

any variable other than the IV that may have an effect on DV if not controlled

Question 2

cofounding variables

Answer 2

any variable other than the IV that may effect the DV that doesnt confound the results

Question 3

demand characteristics

Answer 3

any clue in the experiment that may be interpreted by participants to reveal the purpose of the study

Question 4

investigator effects

Answer 4

any effect of the researchers behaviour that could influence the outcome