Further Information
Primer of Statistical Tools
| | Depending on the focus of a tool and the availability of
data resources a developer may want to examine many of the following
statistical procedures.
Examination of a tool's reliability uses a framework of
 | Descriptive statistics |
| Distribution of cases |
| Reliability of a scale(s) |
| Item analysis using correlation to scale or other reliability
measures. |
| Scale construction patterns using Principal Component Extractions
(Factor analysis) |
| Examination of differences in category or group performance based on
selected criteria (gender, age, ethnic identities, language groups, etc.) |
| If appropriate discriminate analysis or other selection criteria
evaluations. |
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