Psychology 1 - Research Methods Flashcards
What is repeated measures?
There is only one group of participants which takes part in both conditions of the experiment
What is independent groups?
The available people for the experiment are divided into 2 groups
One group takes part in one condition of the experiment and the other group takes part in the remaining condition
What is matched pairs?
The available people are tested and matched for qualities into pairs
One member of each pair takes part in one condition of the experiment and the other member of each pair takes part in the other condition
What is the order effect?
This occurs when a participant’s performance in the second condition of an experiment is affected because they have already done the first condition
What are participant variables?
The differences between people taking part in a study
This affects experiments using the independent groups design mostly
What are standardised procedures?
A set order of carrying out a study that is applied to all participants when necessary
What is random allocation?
A procedure for putting participants into conditions by chance
What is counterbalancing?
A procedure for evening out the order in which participants complete both conditions of an experiment
What is an extraneous variable?
A variable that is not the IV but might affect the DV if it is not controlled
What is the order of instructions in a study?
Briefing (encourage a person to participate, the right to withdraw and confidentiality is explained)
Standardised instructions (the actual instructions for what the participant actually has to do)
Debriefing (describes aim, method, how the people participate and the ethical considerations are addressed again)
What is randomisation?
Using chance to produce an order for a procedure
What is ecological validity?
How much the results of the investigation can be said to apply to real life situations
What are the 4 sampling methods?
Random
Opportunity
Systematic
Stratified
What is random sampling?
Every member of the target population is numbered and numbers (participants) are randomly picked until the desired sample size is reached
What is opportunity sampling?
The most available people for the investigation are chosen