Hi,
I assume tht in the meantime you have a pool of all here given solutions in Eindhoven.
I should do it like this:
In a question of type "short text" you create a string of 8 characters in random order.
Code:
<script type="text/javascript" charset="utf-8">
$(document).on('ready pjax:scriptcomplete',function(){
// Identify this question
var thisQuestion = $('#question{QID}');
// Create an array of possible numbers
var numbers = [1,2,3,4,5,6,7,8];
// Shuffle the numbers array
shuffleArray(numbers);
var n1=numbers.join();
var n2=n1.replace(/,/g, '');
$('input:text', thisQuestion).val(n2);
});
// A function to shuffle arrays
function shuffleArray(array) {
for (var i = array.length - 1; i > 0; i--) {
var j = Math.floor(Math.random() * (i + 1));
var temp = array[i];
array[i] = array[j];
array[j] = temp;
}
return array;
}
</script>
This will give you a string like "62857341"
Now if you rename your videos to something like "video1.mp4", "video2.mp4" you can select the videos as "video{substr(Q0,0,1)}.mp4" which will result in "video6.mp4".
And the next as "video{substr(Q0,1,1)}.mp4"
Joffm
are presented (randomly) and than ask some statement questions about these video’s. So all 8 videos are to be shown but in different and random combinations of two to each respondent.At the end of the page the question is asked which video they want to choose or neither of the two.
