Hi,

I'm quite new in Inquisit, that's why I have a problem with modifying Dot Estimation Task (https://www.millisecond.com/download/library/DotEstimationTask/).

I need to implement modification which allows subjects to repeat pictures with dots and counts the number of repeats.

The new element I wish to implement is simple question "Are you ready to estimate the number of dots?" and after that, if subject answered "Yes" - he/she is asked to write estimated number, if he/she answered "No", the same display appears again. Additionally I need only to know how many times subject repeated picture.

Everything I need but this is in existing script.

Could you help me or suggest some tutorial?

You need to introduce an additional <trial> for that. If the response on that trial is 'yes', proceed to the estimation trial. If 'no', /branch back to the picture presentation.

Thank you Dave, actually I knew that I need additional trial but can't find any information about what exactly should it contains.

Now this element is:

<text repeat>
/ items = ("Repeat?")
/ size = (75%, 75%)
/ hjustify = center
</text>

<trial repeat>
/ stimulusframes = [1=repeat]
/ validresponse = ("Y", "N")
/ recorddata = false
/ trialduration =
</trial>

But I can't run exp. - the communicate states: 'Y' is not a valid setting. 'N' is not a valid setting. 'No response' can not be specified unless the trial has a timeout.

Where is my mistake?

You need to specify the proper /inputdevice.

That works! It was "mouse", after changing to "keyboard" both are working.

For
now both responses ("Y" and" N") proceed to estimation window, what
should I add to establish this conditions (if "N" go back to image")?

As already indicated in my initial reply, you need to use /branch.