Description
Map a bounded rating between opposite direction conventions.
Developmental research scores can be expressed as changes, ratios, reversed scales or contrasts between conditions. Those arithmetic forms have distinct denominators and need a suitable measurement model before they support psychological interpretation.
Map a bounded rating between opposite direction conventions.
When to use this tool
Use Development Rating Scale Direction Crosswalk when checking a supplied score or response contrast.
How to use the tool and how it works
- Enter score, minimum, maximum, sourceHigherIsMore, targetHigherIsMore. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read mappedScore, reversed. Inspect reversed before interpreting the associated values.
Map a bounded rating between opposite direction conventions. Require minimum <= score <= maximum with positive scale width; preserve score when direction flags match, otherwise reflect as minimum+maximum-score.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| score | Score | Required. Finite number. |
| minimum | Minimum | Required. Finite number. |
| maximum | Maximum | Required. Finite number. |
| sourceHigherIsMore | Source Higher Is More | Required. Boolean. |
| targetHigherIsMore | Target Higher Is More | Required. Boolean. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| mappedScore | Mapped Score | Required. Finite number. |
| reversed | Reversed | Required. Boolean. |
{
"input": {
"score": 2,
"minimum": 1,
"maximum": 5,
"sourceHigherIsMore": true,
"targetHigherIsMore": false
},
"output": {
"mappedScore": 4,
"reversed": true
}
}Limitations and assumptions
- This reverses numeric orientation, not construct meaning, scale validity or clinical interpretation.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Use validated instruments, an appropriate study design and professional assessment when interpreting individual development or cognitive function.
References
Similar or alternative tools
- Developmental Trajectory One Wave Change
Return two-wave score change and change per month.
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