Types of extraneous variables

Question 1

What are demand characteristics?

Answer 1

• participants realise what the aim of the experiment is and then act unnaturally (either doing exactly what they think the experimenter wants or the opposite)

Question 2

What are situational variables?

Answer 2

• Participants are affected by the environment they are in (noise) rather than the IV

Question 3

What are participant variables?

Answer 3

• when the results of a study are more affected by participants individual characteristics (gender, age) rather than the IV

Question 4

What are order Effects?

Answer 4

• When the results of a study are improved by the repetition of a task rather than the IV.
  -If someone does the same task multiple times they will improve over time or get worse (fatigue effects)

Question 5

What are experimenter/observer effects?

Answer 5

• When the participants complete an activity differently because they know someone is watching them.