Counting correct answers

toma

Hi
I've a "simple" problem, but I did'nt find a solution yet being new at Python.
I just want to have the feedback not as accuracy ( in %) but as a simple counting of correct answer to have a clear feedback for children (you have N good answers).
Thanks for help.
Tom

sebastiaan

Hi Tom,

OpenSesame 3.1 has a responses object that contains the entire response history. So you can use that to, among things, determine how many correct responses were given:

# Get a list of correctness values, but exclude those that are None (i.e.
# when correctness was undefined, for example during instruction screens)
l_correct = [correct for correct in responses.correct if correct is not None]
# Get the sum of all correctness values, that is, the total number of correct
# responses
n_correct = sum(l_correct)
print('n_correct = %d' % n_correct)

See also:

• http://osdoc.cogsci.nl/3.1/manual/python/responses.html

OpenSesame 3.1 is still in testing, but I think that it's stable enough now that you can use it if you need this functionality.

Cheers!
Sebastiaan