Front
Operational Definition
Back
A statement of the procedures used to define research variables
Defining 'intelligence' as a score on a specific IQ test to allow for replication.
Public Deck
AP Psychology - 50 Key Concepts
Master AP Psychology with 50 essential concepts covering all major units from research methods to psychological disorders.
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Front
Independent Variable
Back
The experimental factor that is manipulated by the researcher
In a study on caffeine and focus, the amount of caffeine given to participants.
Front
Dependent Variable
Back
The outcome factor that is measured in response to manipulations
In a study on study time and grades, the actual test scores achieved.
Front
Control Group
Back
The group not exposed to the treatment, used for comparison
Participants receiving a placebo pill instead of the active medication.
Front
Double-blind Procedure
Back
An experiment where neither the staff nor the participants know who received treatment
Prevents researcher bias and the placebo effect from skewing results.
Front
Correlation Coefficient
Back
A statistical index of the relationship between two things (from -1 to +1)
A score of +0.9 indicates a very strong positive relationship.
Front
Case Study
Back
An observation technique in which one person is studied in depth
Studying Phineas Gage to understand how brain damage affects personality.
Front
Naturalistic Observation
Back
Observing and recording behavior in naturally occurring situations
Watching chimpanzees in the wild without trying to manipulate the environment.
Front
Myelin Sheath
Back
A fatty tissue layer segmentally encasing the axons of some neurons
Speeds up the transmission of neural impulses; damage causes Multiple Sclerosis.
Front
Neurotransmitters
Back
Chemical messengers that cross the synaptic gaps between neurons
Dopamine, serotonin, and acetylcholine are common examples.
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