Random block presentation order

[Leisha Wharfield]

Yes, nice suggestion. Even though I read the book I found it hard to set
up multiple random lists. (Once I had it figured out, it was easy.) I
also ran one where I needed to establish a random order for each
subject, then repeat that same "random" order later in the experiment.
Wound up solving that problem awkwardly, then got great suggestions from
this list.

Leisha

Andrews, A.S. wrote:

>Many thanks to Leisha, and to David Hairston who suggested the same
>approach.
>
>It worked first time :)
>
>Does anyone else think this functionality would be a useful addition to the
>available Selection Order properties of a list? e.g.. I would have a
>weighting of 5 for each of the six items, and an Selection Order
>specification called say, "Random, confined', would produce the selection
>order detailed below.
>
>Thanks again
>
>Tony.
>
>
>----- Original Message -----
>From: "Leisha Wharfield" <leisha at decisionresearch.org>
>To: "Andrews, A.S." <asa8 at leicester.ac.uk>
>Cc: <eprime at mail.talkbank.org>
>Sent: Tuesday, June 29, 2004 5:13 PM
>Subject: Re: Random block presentation order
>
>
>
>
>>I think you have a master block list that lists your 6 lists and is set
>>to select Randomly. Each of the 6 lists in the master list has its 5
>>trials embedded in it, and those embedded lists are set to select
>>Randomly, and also to go through all 5 trials before returning to the
>>master list. Similarly, the master list goes through all 6 of its
>>embedded lists before terminating.
>>
>>Andrews, A.S. wrote:
>>
>>
>>
>>>I have 6 lists, each with 5 trials. I need to choose each list in a
>>>
>>>
>random order and execute all 5 of its trials (in a random order) before
>moving on to the next list.
>
>
>>>I'm sure this must have been done before - can anyone please help?
>>>
>>>Many thanks.
>>>
>>>Regards
>>>
>>>Tony Andrews
>>>Senior Computer Officer
>>>School of Psychology
>>>University of Leicester.
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>
>>
>>
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