Eduqas A-Level Psychology A290QS
Biological Approach
Psychodynamic Approach
Behaviourist Approach
Cognitive Approach
Positive Approach
Comparing the Five Approaches
Core Studies in Social and Developmental Psychology
Planning Psychological Research
Data Handling, Statistics and Mathematical Skills
Evaluating and Validating Research
Personal Investigations and Novel Research Scenarios
Addictive BehavioursAddictive
Autistic Spectrum BehavioursAutistic spectrum
Bullying BehavioursBullying
Criminal BehavioursCriminal
SchizophreniaSchizophrenia
StressStress
Controversies in Psychology
Planning Psychological Research
Deciding on a research question: Co-variables, Operationalisation of variables and Extraneous variables
- 3 things to know
- Component 2
Overview
Recall questions on Co-variables, Operationalisation of variables and Extraneous variables.
What you need to know
Answer each one before you reveal it.
One memory condition is tested at nine in the morning and the other at four in the afternoon. What is wrong with this?
Why does poor operationalisation damage a study?
Questions from this subtopic
Each one with the model answer underneath.
- 1
What are co-variables?
Model answer
They are the two variables measured in a correlational study, neither of which is manipulated by the researcher.
- 2
Why do we speak of co-variables rather than an independent and dependent variable in a correlation?
Model answer
Nothing has been manipulated, so no cause-and-effect direction can be claimed, and the terms independent and dependent would wrongly imply that one variable produces the other.
- 3
What does it mean to operationalise a variable?
Model answer
It means defining the variable precisely in terms of exactly how it will be manipulated or measured, so that another researcher could repeat the study.
- 4
Operationalise the variable “aggression” for a study of children in a playground.
Model answer
Aggression could be operationalised as the number of physical acts such as hitting, kicking or pushing recorded during a ten-minute observation of the playground.
- 5
Why does poor operationalisation damage a study?
Model answer
A vaguely defined variable cannot be measured consistently, which lowers validity and makes it impossible for anyone else to replicate the work.
- 6
What is an extraneous variable?
Model answer
It is any variable other than the independent variable that could affect the dependent variable and add unwanted noise to the results if it is left uncontrolled.
Other ways to work this
The same content, four other ways.
What is inside Levo
Six ways to work the same material.
Every question in Planning Psychological Research, on a schedule.
Attempt a question from memory, write the correct version, then attempt it again. Levo records the jump between your first attempt and your last, and brings each question back on the day you are due to forget it.
Or £46 a year, about £3.83 a month. Cancel anytime.