Validity and Reliability Lecture Notes for Psychological Assessment and testing
9 views 0 purchase
Course
Psychology (ORGPSYCH301)
Institution
Rhodes University (RU)
Lecture notes/summarization of validity and reliability. Describes the different validity and reliability tests/measures and the factors affecting them respectively.
Validity and reliability in psychological assessment
Subjects
psychological assessment
validity
reliability
psychometrics
industrial psychology
organisational psychology
Written for
Rhodes University (RU)
Psychology (ORGPSYCH301)
All documents for this subject (6)
Seller
Follow
khweziziqubu
Content preview
validity
What does an instrument really measure? The validity of
a measure concerns what the test measures and how
well it does so.
There are three types of test validation procedures:
Content-description procedures, Construct- identification
procedures and Criterion- prediction procedures.
CONTENT
Face Validity
Does not refer to what the test measures, but rather
what it appears to measure
Essentially, does it appear to measure what it sets out
to measure
Based on expert judgement
Content Validity
Involves determining whether the content of a
measure adequately represents the domain of
interest, ie. does the content of the test fully cover the
important areas being assessed
Implies that the items making up the test should be
representative of the characteristics/property/trait that
is being measured
Panel experts used to evaluate the items
, CONSTRUCT
Construct validity of a measure is the extent to which
it measures the theoretical construct or trait that it is
supposed to measure
Examples of constructs are: intelligence, verbal
ability, spatial perception, eye-hand coordination...
In order to demonstrate construct validity evidence
that the test measures what it purports to measure
as well as evidence that the test does not measure
irrelevant attributes are both required
CRITERION
Concurrent
Involves the accuracy with which a measure can
identify and diagnose the current behaviour
regarding specific skills or characteristics of an
individual
Predictive
Involves the accuracy with which a measure can
predict the future behaviour of an individual
Any psychological measure can be a possible predictor. A
criterion is a benchmark variable against which scores on
a psychological measure are compared.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller khweziziqubu. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $2.76. You're not tied to anything after your purchase.
