MYTUTOR SUBJECT ANSWERS

1444 views

What is an Extraneous Variable?

An Extraneous Variable is something that the experimenter cannot control, which can have an effect on the overall outcome of the experiment. The main four extraneous variables are demand characteristics, experimenter effects, participant variables and situational variables.

Demand Characteristics: Environmental clues that may tell the participant what is expected of them, such as the environmental setting or the researches body language. This in turn can affect their behaviour.

Experimenter Effects: When the researcher themselves affect the outcome by giving subconscious clues about how to behave. This may involve unintentionally asking leading questions that inform the participant of the desired result.

Participant variables: Something about the participant that is out of the researcher's control. For example, whilst researches may try and target individuals with a certain background for an experiment, existing variables such as their health, or prior knowledge, could affect the outcome. For example, a participant with prior knowledge of Milgram's experiment would be an extraneous variable in a reimagining of the experiment.

Situational variables: Whilst the researcher may do their best to control an experiment (for example, controlling the time of day), situational variables can still affect the results. For example, a field experiment conducted at the same time of day across a week may experience sporadic weather or unexpected noise pollution, changing the mood/actions of the participants.

Lydia S. GCSE English Literature tutor, A Level English Literature tu...

1 year ago

Answered by Lydia, a GCSE Psychology tutor with MyTutor


Still stuck? Get one-to-one help from a personally interviewed subject specialist

71 SUBJECT SPECIALISTS

£24 /hr

Dorothea C.

Degree: Psychology (Bachelors) - Exeter University

Subjects offered:Psychology, German+ 1 more

Psychology
German
French

“My name is Dorothea and I am a Psychology student at Exeter University. My aim is to help pupils understand topics in a way that suits their learning style”

£20 /hr

Katherine W.

Degree: Psychology (Foundations in Clinical and Forensic Psychology) (Masters) - Newcastle University

Subjects offered:Psychology, Philosophy and Ethics

Psychology
Philosophy and Ethics

“Psychology MSc Student with experience at Psychology GCSE and A-level as well as RS GCSE and A-level. Prior Teaching experience. Full DBS Certificate.”

MyTutor guarantee

£18 /hr

Frances B.

Degree: Experimental Psychology (Bachelors) - Bristol University

Subjects offered:Psychology, Maths+ 3 more

Psychology
Maths
Extended Project Qualification
English
-Personal Statements-

“Hi, I'm Frances! I study Experimental Psychology at the University of Bristol and tutor Psychology, Maths, English, EPQ and Personal Statements.”

Trusted by schools

|  14 completed tutorials

About the author

Lydia S.

Currently unavailable: until 12/01/2016

Degree: English Literature and Philosophy (Bachelors) - Newcastle University

Subjects offered:Psychology, Philosophy and Ethics+ 1 more

Psychology
Philosophy and Ethics
English Literature

“About Me.Hello! My name's Lydia and I study English Literature and Philosophy at Newcastle University and would love to help you with anything you need- be it specific books I have studied or essay preperation!Trained Essay Advisor....”

MyTutor guarantee

|  2 completed tutorials

You may also like...

Posts by Lydia

Can you explain the narrative techniques in The Turn of the Screw?

Can you explain the narrative techniques in The Turn of The Screw?

How do I remember quotes from articles in my exam?

How does Candy's dog and his fate foreshadow other events?

Other GCSE Psychology questions

What is the difference between monocular and binocular depth cues?

Outline the behavioural explanation of phobias

What is classical conditioning?

What is a bystander effect?

View GCSE Psychology tutors

We use cookies to improve your site experience. By continuing to use this website, we'll assume that you're OK with this. Dismiss

mtw:mercury1:status:ok