# yaml-language-server: $schema=https://raw.githubusercontent.com/rasinmuhammed/misata/main/schema/misata.schema.json
name: edtech-practice-evalpack
seed: 42
generation_mode: anchored
tables:
  students:
    rows: 600
    columns:
      student_id:
        type: int
        unique: true
        nullable: false
        min: 1
        max: 99999
        distribution: normal
      grade_level:
        type: int
        nullable: false
        min: 8
        max: 12
        distribution: normal
      signup_date:
        type: datetime
        nullable: false
        start: '2024-01-01'
        end: '2024-12-31'
  practice_attempts:
    rows: 15000
    columns:
      attempt_id:
        type: int
        unique: true
        nullable: false
        min: 1
        max: 9999999
        distribution: normal
      student_id:
        type: foreign_key
        nullable: false
      attempted_at:
        type: datetime
        nullable: false
        start: '2025-01-01'
        end: '2025-06-30'
      correct:
        type: boolean
        nullable: false
      duration_seconds:
        type: int
        nullable: false
        min: 5
        max: 900
        distribution: normal
relationships:
- students.student_id → practice_attempts.student_id
outcome_curves:
- table: practice_attempts
  column: duration_seconds
  time_column: attempted_at
  time_unit: month
  pattern_type: seasonal
  curve_points:
  - date: '2025-01-01'
    target_value: 500000.0
  - date: '2025-02-01'
    target_value: 520000.0
  - date: '2025-03-01'
    target_value: 540000.0
  - date: '2025-04-01'
    target_value: 560000.0
  - date: '2025-05-01'
    target_value: 580000.0
  - date: '2025-06-01'
    target_value: 600000.0
rate_curves:
- table: practice_attempts
  column: correct
  time_column: attempted_at
  time_unit: month
  rate_points:
  - period: 2025-01
    rate: 0.55
  - period: 2025-02
    rate: 0.5760000000000001
  - period: 2025-03
    rate: 0.6020000000000001
  - period: 2025-04
    rate: 0.628
  - period: 2025-05
    rate: 0.654
  - period: 2025-06
    rate: 0.68