Characteristics of a Good Test/: Compiled By Nurmala Hendrawaty, M.Pd

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Characteristics of a Good Test/ Principles of language Assessment Assessment

COMPILED BY NURMALA NURMAL A HENDRAW HENDRAWA AT Y, M.PD

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Good test possess three qualities: 1. 2. 3.

Reliability Validity Practicality

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Reliability means the stability of test scores.

 A reliable test is consistent and dependable.. It means if you give to the dependable same student or matched students on two different occasions, the test should

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TYPES OF ESTIMATES OF RELIABILITY 1.

By retesting the same individuals with the same test;

2.

Computing reliability;

3.

Estimating the consistency with statistical techniques such as a split-half method (Spearman Brown) and rational equivalence

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FACTORS MAY CONTRIBUTE TO THE UNRELIA UNR ELIABIL BILITY ITY OF A TES TEST T:

Student-Related Reliability The most common issue is caused by temporary illness, fatigue, anxiety, and other physical or psychological factors.  Test administration Reliability  because of street noise outside the building;   students sitting next to the windows could not 

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Validity is the degree to which a test measures. It measures what it is supposed to measure. Types of Validity: 1.

Content Validity

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It is designed to measure

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EMPIRICAL VALIDITY It is used to determine how test scores are related to some independent such as marks given at the end of a course or instructors’ or supervisor’s rating.

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FACE VALIDITY VALIDIT Y Face validity refers to the degree to which a test looks right and appears to measure the knowledge or abilities.

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CONSTRUCT VALIDIT VALIDITY Y

Construct validity is a major issue in validating large-scale standardized standardized tests of

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 An effective effective test test is practical practical or usable. usable. This means that it

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