individual response time

[Christian]

Hi!

I have a fairly technical question. I want to conduct an online experiment using qualtrics that involves the manipulation of the decision time.

Specifically, I want to do the following:
A participant completes four questions with no time limit. Qualtrics then calculates the average response time it took the participant to answer these 4 questions. I then want to ask 20 similar questions but this time I want to limit the time available to answer each of these questions. Specifically, for each answer I want to give a percentage of the average response time it took the participant to answer the first 4 questions.

Maybe I should give a little example to illustrate what I plan to do:
First, I ask 4 questions with no time limit and measure the response time it takes the participant to answer each of these questions, e.g.:
Q1: 45 seconds (measured by qualtrics)
Q2: 40 seconds (measured by qualtrics)
Q3: 50 seconds (measured by qualtrics)
Q4: 45 seconds (measured by qualtrics)
This gives an average of 45 seconds that it takes the participant to give an answer.
I then ask the same participant in the same survey 20 more questions. This time I want to limit the time available to provide each answer as a percentage of the average response time to the first four questions, e.g., 60% of the average response time = 27 seconds per answer:
Q5: 27 seconds (set by me/qualtrics)
Q6: 27 seconds (set by me/qualtrics)
…
Q24: 27 seconds (set by me/qualtrics).

I looked into the JavaScript of the QRTE and saw that you can set the stimulus duration. Is there any way, that I can link this stimulus duration to prior response times (e.g., the average response time of that participant for the questions in the previous block)?

In my field of research (i.e., accounting) as well as other fields (e.g., psychology) the manipulation of time pressure is very common and I know that the possibility to manipulate time pressure on an individual basis as I am trying to do is in great demand and many researchers in my field would greatly benefit from such a possibility.

I would very much appreciate your help with this!

Thank you!

Christian

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