1. Objective-baseness: Evaluation is
making judgment about some phenomena or performance on the basis of some
pre-determined objectives. Therefore a tool meant for evaluation
should measure attainment in terms of criteria determined by instructional
objectives.
2. Comprehensiveness: A tool should cover
all pints expected to be learnt by the pupils. It should also cover
all the pre-determined objectives. This is referred to be
comprehensiveness.
3. Discriminating power: A good evaluation
tool should be able to discriminate the respondents on the basis of the
phenomena measured.
4. Reliability: Reliability
of a tool refers to the degree of consistency and accuracy with which it
measures what it is intended to measure. If the evaluation gives
more or less the same result every time it is used, such evaluation is said to
be reliable.
5. Validity: Validity is the most important
quality needed for an evaluation tool. If the tool is able to
measure what it is intended to measure, it can be said that the tool is
valid. It should fulfill the objectives for which it is
developed.
6. Objectivity: A
tool is said to be objective if it is free from personal bias of interpreting
its scope as well as in scoring the responses. Objectivity is one of the most
primary pre-requisites required for maintaining all other qualities of a good
too.
7. Practicability: A tool, however, well it
satisfies all the above criteria, may be useless unless it is not practically
feasible.
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