{
  "key": STRING,
  "type": "radio",
  "orientation": STRING ("horizontal" | "vertical") 
  "question": STRING,        
  "instruction": STRING,
  "required": BOOL,
  "randomized": BOOL,
  "other": BOOL // optional; only available in vertical orientation
  "minLabel": STRING, // optional; only available in horizontal orientation
  "maxLabel": STRING, // optional; only available in horizontal orientation
  "decreaseIncreaseAccessory": BOOL, // optional; only available in horizontal orientation
  "options": [
    {
      "key": STRING,
      "value": STRING,
      "default": BOOL // optional
    }
  ]
}

{
  "key": STRING,
  "type": "smiley",
  "question": STRING,
  "instruction": STRING, 
  "required": BOOL
}

{
  "key": STRING,
  "type": "checkbox",
  "question": STRING,
  "instruction": STRING,    
  "required": BOOL,
  "randomized": BOOL,
   "maxSelectable": INT, // optional
   "options": [
     {
       "key": STRING,
       "value": STRING,
       "selected": BOOL // optional
      }
    ]
}

{
  "key": STRING,
  "type": "slider",
  "question": STRING,
  "instruction": STRING,
  "required": BOOL,
  "minValue": FLOAT,
  "maxValue": FLOAT,
  "minLabel": STRING,
  "maxLabel": STRING,
  "showSelectedValue": BOOL, // optional
  "stepValue": INT // optional
}

{
  "key": STRING,
  "type": "text",
  "question": STRING,
  "input": STRING ("text" | "number" | "email") , // optional, defaults to text
  "instruction": STRING,
  "placeholder": STRING,
  "required": BOOL
}

{
  "key": STRING,
  "type": "sortable",
  "question": STRING,    
  "instruction": STRING,
  "required": BOOL,
  "randomized": BOOL,
  "options": [
    {
      "key": STRING,
      "value": STRING
    }
  ]
}