Millisecond Forums

 Hi Dave and other savvy users,

I have a handful of questions that I am eager to get your help.

1. Is there a way to make an experiment where participants are forced to remain in a particular segment for 5-6 minutes? (I am trying to induce a sad mood by asking them to think about a very sad event in their lives and write a few sentences about the event. I would like them to remain in that particular segment for about 5-6 minutes so that they will actually take time to think and write about the event) How could I go about devising this into iqx?

2. In my study, I have four conditions. As I wanted each participant to be randomized to one of the conditions, I created a batch that looks like this:

<batch>
/ file = "fullfree2.iqx"
/ file = "fullfree9.iqx"
/ file = "fullsuppress2.iqx"
/ file = "fullsuppress9.iqx"
/ selectionmode = random
</batch>

But now… I am hoping to add a couple more iqxs into this batch (let’s say A.iqx, B.iqx, and C.iqx). And I would like all participants to complete A, B, and C iqxs. 

So, for example, what I want to have is the following:

Participant X completes:
A.iqx
Randomly selected “fullfree2.iqx”
B.iqx
C.iqx

Participant BB completes:
A.iqx
Randomly selected “fullsuppress9.iqx”
B.iqx
C.iqx

.
.
.
and etc.

How can I go about doing this?

3. I have two separate instruction pages in htm format and it is currently set up as the following:

<block EmotionalStroop>
/preinstructions =(fullfree9, sumfree9)
/ trials = [1 = getready; 2-73 =noreplace(targetword, NeutralWord, oppositeword)]
</block>


I noticed that participants are able to go back and forth between fullfree9.htm and sumfree9.htm. Is there a way to erase a back button between these pages?


I would so appreciate your help on these questions. Please let me know about this! Thank you!!!