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Reliability of Difference Scores 2.1

A standalone Windows program that calculates the reliability of difference score

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Last Week downloads: 0
Total downloads: 249
  • Last Updated: Jan 13, 2009
  • License: Freeware Free
  • OS: Windows Vista/2003/XP/2000/98/Me/NT
  • Requirements: No special requirements

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For Reliability of Difference Scores 2.1Publisher's description

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Reliability of Difference Scores is a Home & Education software developed by Marley W. Watkins. After our trial and test, the software is proved to be official, secure and free. Here is the official description for Reliability of Difference Scores:

BS Editor: A standalone Windows program that calculates the reliability of difference scores, given the reliability of two tests and the correlation between those two tests.

A difference score is obtained by subtracting one test score from another test score. For example, a student's IQ Test score and Reading test score. This might be interpreted as the difference between ability and achievement.

A difference score is, like the test scores from which it was calculated, unreliable to some extent. Its reliability will be a function of the reliability of the tests used in its computation and the correlation between the scores from the two tests used in its computation as per: Rd = (.5 (Rxx + Ryy) - Rxy) ÷ 1 - Rxy.
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Please be aware that Brothersoft do not supply any crack, patches, serial numbers or keygen for Reliability of Difference Scores,and please consult directly with program authors for any problem with Reliability of Difference Scores.