docs/curation/LEGEND.md

Session-Log Reading Guide

Reference for reading Task 2 (session-interpretation) examples. Keep this open in a side pane while browsing review.md.

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Session header line

Session 3 — 2026-10-10 — 45 min — 1 observer

Or, for inter-observer agreement sessions:

Session 5 — 2026-10-14 — IOA SESSION — 2 observers

Piece	Meaning
Session N	Nth observation session in this log
2026-10-10	Synthetic date (always in 2026 range)
45 min	Session duration
1 observer / 2 observers	Single observer (primary) or IOA session
IOA SESSION	(If present) agreement check; behavior lines in this session show a trailing IOA X% agreement

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Skill data line (acquisition programs)

ordering in a restaurant: 9/13 correct (67%); latency 3.1s; prompts 5

Piece	Meaning
9/13 correct	Correct trials / total trials
67%	Accuracy
latency 3.1s	Mean response latency after SD presentation
prompts 5	Number of trials on which any prompt was delivered

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Behavior data lines

Each target behavior gets its own measurement format matched to the behavior's clinical shape. Generic freq lines apply to most behaviors; behaviors with clinically distinctive shapes have behavior-specific measurements.

Generic frequency behaviors

Aggression: freq 3
Elopement: freq 2
SIB: freq 5
Property destruction: freq 1
Non-compliance: freq 4
Verbal aggression: freq 2

freq N = N occurrences this session.

Tantrum (includes duration)

Tantrum: freq 2, duration 7m total

Stereotypy and mouthing (include partial-interval recording)

Motor stereotypy: freq 8; PIR 18%
Vocal stereotypy: freq 5; PIR 12%
Mouthing: freq 6; PIR 15%

PIR X% = partial-interval recording: % of intervals in which the behavior occurred at any point.

Pica (attempts vs successful ingestion)

Pica: attempts 3 (2 unsuccessful — staff retrieved item before ingestion; 1 successful — item ingested)

Staff often intercept pica attempts; tracking attempts / successful separately preserves the severity signal that a raw frequency loses.

Fecal smearing / scatolia (attempts vs completed smearing)

Fecal smearing (scatolia): attempts 2 (1 intercepted — staff redirected before smearing; 1 completed — feces transferred to skin, clothing, or surface)

Same intercepted / completed split as pica — clinically critical because staff responsiveness directly shapes outcome severity.

Toileting (four-count voiding log)

Toileting accident (urine or bowel): urine: 3 in-toilet / 2 accidents; BM: 0 in-toilet / 1 accidents

Mirrors a standard clinical voiding log. The deceleration target is accidents (urine + BM), but successful in-toilet voids are tracked alongside for context:

• urine: X in-toilet / Y accidents — successful urinations vs. urine accidents
• BM: P in-toilet / Q accidents — successful bowel movements vs. BM accidents

IOA annotation

On sessions marked IOA SESSION, each behavior line ends with ; IOA X% agreement:

Aggression: freq 3; IOA 88% agreement

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ABC line

ABC (elopement): A = peer took toy; B = ran from room; C = staff retrieved learner

• A = Antecedent (what happened immediately before the behavior)
• B = Behavior (operational description)
• C = Consequence (what happened immediately after)

ABC evidence feeds the behavior-function hypothesis in the assistant's response (escape / attention / tangible / automatic, per Iwata et al. 1994 and Hanley, Iwata, & McCord 2003).

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Function-hypothesis line (log header)

Near the top of a log you'll see one line per tracked behavior:

1. Fecal smearing (scatolia) — function hypothesized: automatic
2. Aggression — function hypothesized: escape

These are the sampled (gold) functions that the interpretation response should corroborate with the evidence in the log.

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Program list

Programs tracked this session block:
1. ordering in a restaurant (AFLS Community) — task_analysis
2. mands for a break (VB-MAPP Mand L1) — net
3. tacts colors of objects (VB-MAPP Tact L2) — dtt

Each entry names the skill target, its curriculum location, and the teaching method.

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Behavioral indicator block (across sessions)

BEHAVIORAL OBSERVATIONS (across sessions)
- Increased response latency (3–5× baseline)
- Pushing materials away from the work area
- Vocal refusal ("no", "I don't want to")

These are pattern-specific indicator clusters (frustration, engagement, or disengagement) sampled from the behavioral_indicators block in configs/session_interpretation/taxonomy.yaml.