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Add a note in the parserMultiAnswer.pl macro about the scores array. #1412

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Merged
Alex-Jordan merged 1 commit into from
May 19, 2026
Merged

Add a note in the parserMultiAnswer.pl macro about the scores array. #1412

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9 changes: 6 additions & 3 deletions macros/parsers/parserMultiAnswer.pl
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Original file line number Diff line number Diff line change
Expand Up @@ -515,16 +515,19 @@ =head2 checker

# this checker will give full credit for any answers
sub always_right {
my ($correct,$student,$multi_ans,$ans_hash) = @_; # get the parameters
return [ (1) x scalar(@$correct) ]; # return an array of scores
my ($correct, $student, $multi_ans, $ans_hash) = @_; # get the parameters
return [ (1) x scalar(@$correct) ]; # return an array of scores
}
$multianswer_obj = $multianswer_obj->with(checker=>~~&always_right);
$multianswer_obj = $multianswer_obj->with(checker => ~~&always_right);

If a C<checker> is not provided, a default checker is used. The default checker checks if each
answer is equal to its correct answer (using the overloaded C<==> operator). If C<< partialCredit => 1 >>,
the checker returns an array of 0s and 1s listing which answers are correct giving partial credit.
If C<< partialCredit => 0 >>, the checker only returns 1 if all answers are correct, otherwise returns 0.

Note that C<< $multi_ans->{scores} >> will be set to a reference to an array containing the the
scores from evaluating the individual answers and can be used inside the C<checker> routine.

=head2 partialCredit

This is used with the default checker to determine if the default checker should reward partial
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