There are three principles should be taken into consideration when writing a
Test.(these principles apply to all kinds of tests: to classroom, to monthly
Tests, to end- of – term tests and to the school – leaving exam.
A)Validity- The validity of a test is the extent to which the test measures what
It is intended to measure. In order to be valid,
1)A test or an exam must test what has been taught.
II) A test or an exam must not test things which have not been taught like
Translations or free compositions.
III). A test or an exam must only language skills not things about
Intelligence, memory for facts or general knowledge.
B)Reliability – The reliability of a test is its consistency . If the same test or a
Parallel one is taken again by the same students, the score average will be almost
Constant provided that time between the test and re-test is of a reasonable
length . There are three aspects of reliability: the circumstances in which the test is
taken, the way in which it is marked and the uniformity of the assessment it
In order to be reliable, a test or an exam
a) must have instructions which are equally clear to all the pupils.
b) must allow an appropriate amount of time.
c) must include enough questions.
d) should not allow pupils to choose which questions they answer.
e) must have only one correct answer per question.
C)Practicality – A test must be well-organized in advance. In order to be
Practical, a test or an exam
a) must be as easy as possible to mark.
b) must be possible to prepare and reproduce in the time and with the