research issues

Question 1

What are extraneous variables?

Answer 1

any variable,other than the IV, that may affect the DV if not controlled

Question 2

What are confounding variables?

Answer 2

Any factor found after the study has been conducted, which may have afcted the DV but was not controlled.

Question 3

What are the 4 types of extraneous variables?

Answer 3

demand characteristics, investigator effects, participant variables, situational variables

Question 4

What are demand characteristics?

Answer 4

any cue from the researcher or resarch situation that might reveal the purpose of the investigation and may cause the ppt to change their behaviour

Question 5

What are investigator effects?

Answer 5

any effect of the researcher’s behaviour on the results of the study (leading questions, nodding, design, etc)

Question 6

What are particpant variables?

Answer 6

any individual differences between ppts that might affect the DV (age, intelligence, gender, etc)

Question 7

What are situational variables?

Answer 7

any features of the experimental situation that might affect the DV (noise, time of day, eather, etc.)

Question 8

What is randomisation?

Answer 8

use of chance methods to control for the effects od vias when designing materials and deciding on the order of experimental conditions.

Question 9

What is standardisation?

Answer 9

using exactly the same formalised procedures and instructions for all ppts in a research study