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Simple Standard Score Converter

The following tool is intended for quick conversions of scores. NCA CASI disclaims any responsibility for problems arising from this tool. For scores to be submitted with documentation of results we suggest comparing the converted scores with that provided by the NCA Software.

This tool does not provide the level of input validation as our NCA software or the Standard Score Wizard. As a result, so you may get error messages from the tool.

The following forms are available on this page:

1. Percents/Percentile Ranks

PrePost
example

2. Levels of Attainment with Means

Lowest level of attainment (Low Score):
Highest level of attainment (High Score):
Pre MeanPost Mean
example

3. Levels of Attainment with Means, Percentages given for each level

Lowest level of attainment (Low Score):
Highest level of attainment (High Score):
Pre Post
example

4. Pre-Test and Post-Test Raw Scores

Lowest possible raw score:
Highest possible raw score:
PrePost
example

5. Standard Deviation, Group Size, Pre and Post Means Available

Pretest mean:
Posttest mean:
Standard deviation (pretest preferable):
example

6. Pre and Post Averages Given as NCEs

Pretest mean Normal Curve Equivalent:
Posttest mean Normal Curve Equivalent:
example
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