text: 
  function truthCheck(collection, pre) {
      // Is everyone being true?
      for(var i=0; i<collection.length; i++) {
          if(!collection[i][pre])  // If the property evaluates to a falsy value
              return false;
      }
      
      return true;
  }
  
  truthCheck([{"user": "Tinky-Winky", "sex": "male"}, {"user": "Dipsy", "sex": "male"}, {"user": "Laa-Laa", "sex": "female"}, {"user": "Po", "sex": "female"}], "sex");