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Article Information:
The Effective use of Standard Scores for Research in Educational Management
T.O. Adeyemi
Corresponding Author: Tunji Olusola Adeyemi
Submitted: 2010 November, 17
Accepted: 2010 December, 31
Published: 2011 September, 25 |
Abstract:
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This study explained the use of standard scores otherwise known as z scores for research in
educational management. Since a score is a unit distance between two limits, the individual given a score in
percentage might have actually scored between the lower limit and the upper limit of that score. A score
therefore represent the mid-point between the lower limit and the upper limit of the score. Therefore, standard
score is a derived score that expresses how far a raw score is from some reference point such as the mean in
terms of standard deviation units. It is useful in educational management as it gives an accurate definition of
the score especially in data analysis. Although standard scores always assume a normal distribution, but if this
assumption is not met, the scores cannot be interpreted as a standard proportion of the distribution from which
they were calculated. However, standard or z scores can be used to compare raw scores that are taken from
different tests especially when the data are at the interval level of measurement.
Key words: Educational, effective, management, research, scores, standard,
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Cite this Reference:
T.O. Adeyemi, . The Effective use of Standard Scores for Research in Educational Management. Research Journal of Mathematics and Statistics, (3): 91-96.
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ISSN (Online): 2040-7505
ISSN (Print): 2042-2024 |
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