Research issues

Question 1

What are extraneous variables?

Answer 1

any variable that effects the dv ,that’s not the iv, if not controlled-e.g participant reactivity

Question 2

What are confounding variables?

Answer 2

varies systematically with the IV. therefore we can’t tell if any change in DV was due to the IV or the confounding variable

Question 3

What are demand characteristics?

Answer 3

any cue from the researcher or from the research situation that may be interpreted by participants as revealing the purpose of the investigation-may lead to participants changing behaviour within research situation- please-u effect an screw-u effect

Question 4

What are investigator effects?

Answer 4

any effect of the investigator’s behaviour (conscious or unconscious) on the research outcome-may lead participants to change their behaviour within research situation

Question 5

what is randomisation?

Answer 5

the use of chance methods to control for the effects of bias when designing materials and deciding the order of experimental conditions-an attempt to control investigator effects, an alternitive for counter balancing

Question 6

What is standardisation?

Answer 6

using exactly the same formalised procedures and instructions for all participants in a research study-prevents extraneous variables

Question 7

How can a research diminish the effects of extraneous/confounding variables?

Answer 7

randomisation