Review ask
As a clinical trial statistician or programmer, challenge anything in this benchmark: describe a problem in Comments, or propose a fix with the Edit button on any source file.
- Task: Would a real study need this derivation, specified this way? Does it follow CDISC ADaM: variable names, controlled terms, record structure? Flag any rule that is ambiguous or that a sponsor would handle differently.
- Inputs: Do they look like data collected in a real trial, and do they include the situations you would expect to meet in one?
- Expected output: Would independent QC programming reproduce every value from these inputs and rules?
The other tabs beside Comments are background for assessment, not under review.
Summary
README.mdGoal: demonstrate the per-record derive step of an aggregation:
convert text questionnaire responses to numbers, then sum them.
Input: questionnaire responses with text results (QSORRES)
for the physical functioning scale. Each subject and visit with a
record for the first item (PF01) gets one score record.
Variables:
PARAMCD:PFSCOREon the score record.PARAM: the subscale name.AVAL: the sum of the visit's physical functioning responses, each read as a number. A blank response is left out of the sum; a response that is not a number stops the run.
Note: there is no separate text-to-number step. Declaring each record's response as a decimal number is what converts it, one record at a time, before the sum runs.
Inputs
Under review1 source fileinput/qs.csv
Edit4 rows| STUDYID | USUBJID | VISIT | QSSEQ | QSCAT | QSTESTCD | QSTEST | QSORRES |
|---|---|---|---|---|---|---|---|
| PILOT7 | BASELINE | 1 | PHYSICAL FUNCTIONING SCALE | PF01 | Trouble with strenuous activity | 2 | |
| PILOT7 | BASELINE | 2 | PHYSICAL FUNCTIONING SCALE | PF02 | Trouble with a long walk | 1 | |
| PILOT7 | BASELINE | 3 | PHYSICAL FUNCTIONING SCALE | PF03 | Trouble with a short walk | 2 | |
| PILOT7 | BASELINE | 4 | PHYSICAL FUNCTIONING SCALE | PF04 | Needs to stay in bed or a chair | 1 |
Expected output
Under review1 expected rowexpected/adqs.csv
Edit1 row| STUDYID | USUBJID | VISIT | PARAMCD | PARAM | AVAL |
|---|---|---|---|---|---|
| PILOT7 | BASELINE | PFSCORE | Physical Functioning Subscale Score | 6 |
Shaded columns are derived— = missing value
Comments and assessment materials
Not under review
| Dataset Name | Variable Name | Variable Label | Type | Codelist/Controlled Terms | Core | Computational Method | Origin |
|---|---|---|---|---|---|---|---|
| ADQS | STUDYID | Study Identifier | character | Copy value from QS.STUDYID. | Predecessor | ||
| ADQS | USUBJID | Unique Subject Identifier | character | Copy value from QS.USUBJID. | Predecessor | ||
| ADQS | VISIT | Visit Name | character | Copy value from QS.VISIT. | Predecessor | ||
| ADQS | PARAMCD | Parameter Code | character | Set per constructed row; see the Row construction sheet. | Derived | ||
| ADQS | PARAM | Parameter | character | Set per constructed row; see the Row construction sheet. | Derived | ||
| ADQS | AVAL | Analysis Value | numeric | Aggregate SUM(QSNUM) over records matching on STUDYID, USUBJID and VISIT, where QS.QSCAT = 'PHYSICAL FUNCTIONING SCALE', with QSNUM as QS.QSORRES. | Derived |
| Template | Include when | PARAMCD | PARAM |
|---|---|---|---|
| subscale | QS.QSCAT = 'PHYSICAL FUNCTIONING SCALE' AND QS.QSTESTCD = 'PF01' | Constant "PFSCORE" | Constant "Physical Functioning Subscale Score" |
| Version | Date | Author | Description | Reviewer | Sign-off |
|---|---|---|---|---|---|
| 1.3 | 2026-09-29 | yamaa docs build | Show study codelist names, external dictionaries, and ISO 8601 formats in variable rows; list the document's codelist values and metadata | ||
| 1.2 | 2026-09-29 | yamaa docs build | Classify ADaM copies from a declared input as Predecessor and recodes as Derived, and SDTM recodes of locally derived columns as Derived | ||
| 1.1 | 2026-09-29 | yamaa docs build | Resolve lookups into the donor record they select, and give every derivation shape a plain-language rule instead of its raw YAML | ||
| 1.0 | yamaa docs build | Initial generation from spec.yaml |
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Comments
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