BART and same maxPumps for each participant

Coding
1

I am running a BART task and I want all participants to receive the same order of maxPumps. I am very new to PsychoPy and coding so I have no idea how to do this.

Thanks!

2

If there’s a random loop then putting a fixed number into the seed field might work.

I think there’s a seed field…I’m on my phone.

3

@wakecarter Thank you for the reply. Sorry for my delayed response. I did try to put an integer in the random seed field and it doesn’t resolve the problem. Any other suggestions?

Thanks!

4

I fixed this problem for you two weeks ago. The repository is here:

As you can see in the screen shots, each run has the same random order.
Screen Shot 2021-10-06 at 2.35.51 PM
Screen Shot 2021-10-06 at 2.35.33 PM

Am I missing something here?

5

Hi Jason!

Yes you did fix it for me and it works when running online. However, I’m trying to get it to work in the lab offline. Sorry for the confusion! I just wanted to see if I could figure it out via here rather than keep bothering you!

1 Like
6

Ah. Gotcha!

For local experiment try putting this on the Python side of maxpumps code:

import (random) 

random.seed(666)
7

Hi @jgeller112 thanks for helping. I did try inserting that code and it still resulted in different maxPumps between sessions. Any other suggestions?

Thanks!

8

Did some searching. This works:

np.random.seed(666)

pump_maxList = []
while len(pump_maxList) < 15:
    a = randint(2,66)
    if a not in pump_maxList:
        pump_maxList.append(a)

copy_pump_max = pump_maxList.copy()

for n in copy_pump_max:
    b = (129-(n))
    pump_maxList.append(b)

shuffle(pump_maxList)

I am not sure why random.seed() does not work.

9

Yep! It works! Thank you so much!