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PRINCIPLES OF LANGUAGE ASSESSMENT, image, image, error, image, image,…
PRINCIPLES OF LANGUAGE ASSESSMENT
PRACTICALLY
Practical
It's not excessively expensive
Appropriate time contraints
Easy to administer
Has a scoring/evaluation procedure that is a specific and time efficient
RELIABILITY
Rater reliability
Human error
Subjectivity
Inter-rater reliability
Two or more scorers yield inconsistent scores of the same test.
Student Related Reliability
Physical and psychological factors
To "observe" the true score
"test-wiseness"
Text administration reliability
the conditions in which the test is administered
Outside noise
Photocopying
Variations in room temperature
Amount of light in different parts of the room
Conditions in desks and chairs
Text reliability
Measurement errors
Timed tests
Test too long is not appropriate
VALIDITY
The extent of an assessment is appropriate of the purpose
Content-related evidence (content validity)
Samples the subject
Clearly define the achievement that you are measuring
Direct testing
test-taker in actually performing the target task
Indirect testing
learners are not performing the task itself but rather a task that is related in some way
Criterion-related evidence
“criterion” of the test has actually been reached
Construct-related evidence
It's any theory, hypothesis or model that attempts to explain observed phenomena in our universe or perceptions.
Consequental validity
All the consequences of a test
impact on the preparation of test-taker
measuring intended criteria
its effect on the learner
(intended and unintended) social consequences of a test’s interpretation and use
Face Validity
the psychological state of the earner
WASHBACK
the psychological state of the earner
the effects the tests have on instruction in terms of how students prepare for the test
QUESTIONS TO APPLY PRINCIPLES
Are the test procedures practical?
Is the test reliable?
does the procedure demonstrate content validity?
Is the procedure face valid and "based for best"?
Are the test taks as authentic as possible?
Does the test offer beneficial washback to the learner?
