{
  "version": 1,
  "title": "Tutorial — Conditionals (Basic)",
  "fields": [
    {
      "id": "intro",
      "type": "note",
      "label": "The 'relevant' property on any field controls whether it is shown or hidden. The expression compares a field ID to a value using = or !=. When a field is hidden, its value is excluded from the submission."
    },
    {
      "id": "divider_1",
      "type": "divider"
    },
    {
      "id": "example_1_note",
      "type": "note",
      "label": "Example 1: Show a follow-up field only when a specific option is selected."
    },
    {
      "id": "has_children",
      "type": "select_one",
      "label": "Does the household have children under 18?",
      "required": true,
      "options": [
        {"value": "yes", "label": "Yes"},
        {"value": "no", "label": "No"}
      ]
    },
    {
      "id": "num_children",
      "type": "number",
      "label": "How many children?",
      "relevant": "has_children = 'yes'"
    },
    {
      "id": "youngest_child_age",
      "type": "number",
      "label": "Age of youngest child",
      "relevant": "has_children = 'yes'"
    },
    {
      "id": "divider_2",
      "type": "divider"
    },
    {
      "id": "example_2_note",
      "type": "note",
      "label": "Example 2: Show a field when an option is NOT selected (using !=)."
    },
    {
      "id": "interview_result",
      "type": "select_one",
      "label": "Interview result",
      "required": true,
      "options": [
        {"value": "completed", "label": "Completed"},
        {"value": "refused", "label": "Refused"},
        {"value": "absent", "label": "Respondent absent"}
      ]
    },
    {
      "id": "refusal_reason",
      "type": "select_one",
      "label": "Reason for refusal",
      "relevant": "interview_result = 'refused'",
      "options": [
        {"value": "no_time", "label": "No time"},
        {"value": "distrust", "label": "Distrust / privacy concern"},
        {"value": "language", "label": "Language barrier"},
        {"value": "other", "label": "Other"}
      ]
    },
    {
      "id": "callback_date",
      "type": "date",
      "label": "Callback date",
      "relevant": "interview_result = 'absent'",
      "hint": "Schedule a return visit"
    },
    {
      "id": "notes",
      "type": "textarea",
      "label": "Notes",
      "relevant": "interview_result != 'completed'"
    }
  ]
}