peoples know about validity the good quality of test and know about types of validity

1. Presentation
Name
Areen Ashraf
Roll no :
Bsf2003348
Topic:
Validity and its types
University of Education Lahore Faisalabad Campus

2. Validity
Validity tells you how accurately a method measures
something. If a method measures what it claims to measure,
and the results closely correspond to real-world values, then it
can be considered valid.

3. Types of Validity
 Internal validity refers to the degree of confidence that the
causal relationship being tested is trustworthy and not
influenced by other factors or variables
 .External validity refers to the extent to which results from
a study can be applied (generalized) to other situations,
groups, or events.

4.  Construct validity
is about how well a test measures the concept it was designed
to evaluate. It’s crucial to establishing the overall validity of a
method.
Assessing construct validity is especially important when you’re
researching something that can’t be measured or observed
directly, such as intelligence, self-confidence, or happiness.
You need multiple observable or measurable indicators to
measure those constructs or run the risk of
introducing research bias into your work.

5.  Content validity:
Evaluates how well an instrument (like a test) covers all
relevant parts of the construct it aims to measure. Here,
a construct is a theoretical concept, theme, or idea: in
particular, one that cannot usually be measured directly.
Content validity is one of the four types of measurement
validity. The other three are:
Face validity: Does the content of the test appear to be
suitable for its aims
Criterion validity: Do the results accurately measure the
concrete outcome they are designed to measure
Construct validity: Does the test measure the concept that it’s
intended to measure

6.  Criterion validity (or criterion-related validity)
Evaluates how accurately a test measures the outcome it was
designed to measure. An outcome can be a disease, behavior,
or performance. Concurrent validity measures tests and
criterion variables in the present, while predictive validity
measures those in the future.
 Concurrent validity
is a subtype of criterion validity. It is called “concurrent”
because the scores of the new test and the criterion variables
are obtained at the same time.