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Strategies used when conducting assessment

Institution: College

Course: Bachelor of Education

Content Category: Summaries

Posted By: Kevinraj

Document Type: DOCX

Number of Pages: 8

Price: KES 30
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Summary

THE QUALITIES OF A GOOD ASSESSMENT TEST.
An assessment is a process of collecting, synthesizing and interpreting information to aid in classroom decision making.
A test is a formal, systematic, often paper and pencil procedure used to gather information about students' performance.
In order for a test to be a good tool for measuring students’ knowledge and skills, it should have the qualities that are essential for the success of any test. These qualities include:
1. Reliability or Consistency.
Reliability or consistency of a test means that learners should perform the same or get the same score if they are exposed to different questions in different times and places.
Based on the stated meaning, reliability termed as the ratio of the true score and the observed score variance and a test is considered reliable when the same result is achieved over different tests.
According to James Carlson's research memorandum, the reliability of test scores is the extent to which they are consistent across different occasions of testing, different editions of the test, or different raters scoring the test taker’s responses. He also mentions some statistics to describe how a test can be reliable.
Factors to consider when ensuring that the test is reliable.
Score Distribution. This is the percentage of test takers at each score level.
Mean Score. This is the verage score, computed by summing the scores of all test takers and dividing by the number of test takers.
Standard Deviation: This is the measure of the amount of variation in a set of scores. It can be interpreted as the average distance of scores from the mean. (Actually, it is a special kind of average called a “root mean square,” computed by squaring the distance of each score from the mean score, averaging the squared distances, and then taking the square root.)
Correlation. This involves a measure of the strength and direction of the relationship between the scores of the same people on two tests.
2. Validity.
A validity of a test can be achieved when the test measures what it is really intended to measure.
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