I have a question concerning the Branch function.
In my experiment there are 4 practice blocks. The participant needs to complete the first two. The completion of another two practice blocks depends on their performance (mean latency > 2.000 ms or < 80% correct responses). While this branch works, I am now stuck in an infinite loop; after finishing the last block, participants again start the second pair of practice blocks, while the experiment actually needed to end.
Below a part of the syntax.
Can anyone tell me how to solve this problem?
Thank you in advance!
<blockPractice_Consistent1>
/skip = [values.abbruch == 1]
/preinstructions = (Practice_Consistent_1)
/trials = [
1=ready.trial;
2=Consistent_Anderen4;
3=Consistent_Ik2;
</block>
<blockPractice_inConsistent1>
/skip = [values.abbruch == 1]
/preinstructions = (Practice_inConsistent)
/postinstructions = (practicefeedback)
/trials = [
1=inConsistent_Anderen1;
2=inConsistent_Ik3;
/branch = [if (expressions.pct_correct < 80 || expressions.mean_rt > 2000)block.practice_consistent2]
/branch = [if (expressions.pct_correct > 80 || expressions.mean_rt < 2000)block.consistent1]
</block>
<blockPractice_Consistent2>
/skip = [values.abbruch == 1]
/onblockbegin=[values.ntrials = 0; values.n_correct = 0; values.sum_latency = 0]
/preinstructions = (Practice_Consistent_2)
/trials = [
1=ready.trial;
2=Consistent_Anderen2;
3=Consistent_Ik2;
/branch = [block.practice_inconsistent2]
</block>
<blockPractice_inConsistent2>
/skip = [values.abbruch == 1]
/preinstructions = (Practice_inConsistent)
/postinstructions = (practicefeedback)
/trials = [
1=inConsistent_Anderen3;
2=inConsistent_Ik4;
/branch = [block.consistent1]
</block>
<blockConsistent1>
/skip = [values.abbruch == 1]
/preinstructions = (Consistent)
/trials = [
1=ready.trial;
2=Consistent_Ik3;
3=Consistent_Ik2;
4=Consistent_Anderen4;
/branch = [block.inconsistent1]
</block>
<blockinConsistent1>
/skip = [values.abbruch == 1]
/preinstructions = (inConsistent)
/trials = [
1=inConsistent_Anderen4;
2=inConsistent_Anderen1;
</block>
<expt>
/onexptbegin = [values.abbruch = 0]
/blocks = [ 1 =Practice_Consistent1;
2 =Practice_inConsistent1;
3 =Practice_Consistent2;
4 =Practice_inConsistent2;
5 = Consistent1;
6 =inConsistent1]
</expt>