Standarized tests can be categorized as either criterion referenced tests or norm-referenced tests. The difference lies in that scores on criterion referenced tests are interpreted by relating performance to some predetermined criterion, whereas scores on norm-referenced tests are interpreted by comparing them with scores obtained by members of the group on which the test was normed.
Most school districts including those in Sparta Township use standardized test results for:
- diagnosing learning difficulties;
- detecting discrepancies between potential and achievement, for example scholastic aptitude tests (which are general in nature and measure one's ability to improve as a result of instruction) and achievement tests (which are specific in nature and tend to be used to evaluate an individual's status upon the completion of a particular subject area);
- assessing growth in academic achievement;
- grouping students for instruction according to some attribute that may be measured (in conjunction with other sources of data such as cummulative records, report card grades, and teacher judgement);
- planning instructional activities; and
- determining reasonable achievement levels in order to modify the curriculum.
It should be noted that in Sparta these test scores do not drive instruction nor curriculum - they simply offer suggestions - according to my colleagues. Yet, reality dictates that some preparation for the students imbedded in instruction must be done so they can be successful.
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