Randomisation and Timed Questions

Hi all,

I'm trying to create a survey that acts in the following way:

1. A word is shown on the screen.


2. After 2 seconds, participants are asked to signify if the word was positive or negative with one of two key presses (I have coded this with javascript). This is a separate question as the participants should not see the word again.

I have created a block that has 50 of these timed words (questions), followed by the javascript question.
From this, I have 2 questions:

1. How can I randomise the order of the words without losing the 2 second timing? Equally, their choice of positive or negative should remain linked to the word as it will be scored.


2. At present the Javascript code has associated the letter 'A' with positive, and 'L' with negative. Is there a way to randomise this at the start of the block (so it only happens once, not per question).

Thanks,
Chris.