Description
Return the conditional rate of one adjacent code transition.
Developmental task timing and coded sequences need a common clock and explicit rules for exclusions, adjacency and response windows. A delay, duration share or transition rate is descriptive rather than a measure of developmental status.
Return the conditional rate of one adjacent code transition.
When to use this tool
Use Symbolic Play Code One Transition when checking a supplied task-time or coded-sequence convention.
How to use the tool and how it works
- Enter codes, fromCode, toCode. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read opportunities, transitions, conditionalFraction. Use the output convention below.
Return the conditional rate of one adjacent code transition. For every fromCode with a following position, count an opportunity and a transition when the next code equals toCode; require at least one opportunity.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| codes | Codes | Required. Array of text; maximum UTF-16 length 8192; maximum items 256. |
| fromCode | From Code | Required. Text; maximum UTF-16 length 8192. |
| toCode | To Code | Required. Text; maximum UTF-16 length 8192. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| opportunities | Opportunities | Required. Safe integer. |
| transitions | Transitions | Required. Safe integer. |
| conditionalFraction | Conditional Fraction | Required. Finite number. |
{
"input": {
"codes": [
"A",
"B",
"A",
"A",
"B"
],
"fromCode": "A",
"toCode": "B"
},
"output": {
"opportunities": 3,
"transitions": 2,
"conditionalFraction": 0.6666666666666666
}
}Limitations and assumptions
- The final code has no following opportunity; counts do not establish independent trials or behavioral 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.
Alternative or Complementary methods
Review the original observations and study design; use appropriate statistical and professional methods for developmental conclusions.
References
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