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CHARACTERISTIC OF A GOOD TEST - Coggle Diagram
CHARACTERISTIC OF A GOOD TEST
Reliabitlity
Test scores stability
Scores will be almost the same even if the test was applied in different situations.
Types of estimate of reliability
Temporarly estability
Reliability can be overestimated if the period of time between the application of the test is short. (Memory factor)
Reliability can also be underestimated if the period of time between the tests appliance is too long.
Parallel form
Different versions of the same test are applied
Similar in:
Lenght
Difficulty
Time-limits
Format
Split half
Divide the test by groups to form two test (odd items and even items)
From those tests we'll get two tests
Speed test
Low difficulty level
Time pressure
Few candidates can complete it
Power test
Difficulty gradually increases
More time to answer
Satisfactory reliability
1.00 Quotient= Reliable
0 (zero)= Absence of reliability
Homemade tests usually run between .70-.80
Error of Measurement
Standard error identifies the points from which the score can vary from the true score
Validity
Content validity
Analyze the content that is going to be evaluated
Test makers provide information about the skills or material
Empirical validity
The relation between the test scores and the marks given at the end of the curse.
Predictive
Test is applied at the beginning of the course
and also
At the end of the first sementer
Cuncurrent
Test is applied at the beginning of the course
and also
During the first week
Face Validity
The way the test looks
however
It cannot take the place of empirical validation
Content doesn't have to look irrelevant or silly
otherwise
Administrators won't apply it
Examinees won't have motivation
Practicality
Economy
Reusable test
Cost per copy
Time
How long it will take to score
The test length has to be proper for the time of the evaluation
Objective score in a separate answer sheet is easier than scoring in a test book.
Equipment
Devices as audio equipment have to be installed in the same room