3. How to Judge Validity of Anything?
Validity it Measure What it is supposed to Measure or can
be used for the purposes for which it is intended. It means
any given test may be for some purpose.
4. Construct Validity
It seeks agreement between a theoretical concept and
a specific measuring device or procedure. It implies
using the construct correctly( concept, ideas, Notions)
Content Validity Criterion Validity
This validity refers the connection Criterion related validity usually
between the test items and the includes any validity strategies that
subject related tasks. The extent to focus on the correlation of the test
which the content of a test can be being validated with some well
said to be sufficiently representative respected outside measure of the
and comprehensive of the purpose same objectives or specifications.
for which it has been design.
5. Criterion Validity
Predictive validity
Concurrent validity This validity is estimates the relation of
It determined by correlating the result on test scores to an examinee’s future
the test with another externally performance as a master or non master.
recognized measure. Care needs to be For this type of validity the correlation that
taken that the two measures are is computed is based on the test result and
measuring similar skills and using similar the examinee's later performance and its
test method. especially useful for test purposes such as
selection or admission.
7. Reliability
Stability Reliability.
Equivalency Reliability Call test -Retest
This reliability is the extent to A Measuring device is stable it is
which two items measure gives the same result when used
identical concepts at an twice on the same object results
identical level of difficulty. it are compared and correlated with
related to the co- occurrence of the initial test to give a measure of
two items. stability.
8. Reliability
Internal consistency
It is measuring instruments used in study. This
type of reliability often help researcher
Interpret data and predict the value of scores
variables of the relationship among variables.
9. Thank You…
Submitted To,
Dr Dilip Barad
Dept. of .English
M.K. Bhavnagar University
Bhavnagar.
