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Psychology
Research methods
Reliability and validity
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Created by
Laurafleetham
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Cards (21)
What is reliability?
The
consistency
of research
What are the different ways to assess reliability?
Inter-rater reliability
Test-retest
reliability
What is
inter-rater
reliability?
Independently research, observe, then compare results with another researcher
What is internal reliability?
The study is
consistent
in itself
What is external reliability?
Can anyone
repeat
the study and get the same
results
?
What is
test-retest
reliability?
Repeating the study with the same participants
How do we improve reliability?
Rewrite
ambiguous
questions on questionnaires
Keeping the same
interviewer
for every reliability
Using
standardised
instructions
Fully
operationalised
behavioural schedules
What is
validity?
Does it test what it claims to test?
What is
internal
validity?
Can establish cause and
effect
How do we assess internal validity?
Face
validity
Concurrent
validity
What is
face
validity?
Seems like it measures what it claims to measure
What is
concurrent
validity?
Comparing this result with an already established test
What is external validity?
Allows you to generalise
What is ecological validity?
The extent to which results can be
generalised
to
daily
life
What is population validity?
The extent to which findings from a study can be
generalised
to the
larger
population
What is is
temporal
validity?
Findings are still relevant
How do we assess external validity?
Replication
Meta-analysis
What is a meta-analysis?
Aggregating
results of many
studies
of the same topic
How do we improve validity?
Single
blind
Double
blind
Standardised
instructions and procedures
What is a single blind trial?
Participants
don’t know the aim
of
the study
What are double blind tests?
Participant
and
researcher
doesn’t know the aims of the study