Multiple Choice with Radio Buttons

Multiple choice template

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Complete Code

Download file: MultipleChoiceRadio.pg

POD for Macro Files

See Also

PG problem file

Explanation

DOCUMENT();

loadMacros('PGstandard.pl', 'PGML.pl', 'parserRadioButtons.pl', 'PGcourse.pl');

Preamble

The macro parserRadioButtons.pl is used for radio button answers.

$radio1 = RadioButtons(
    [ [ 'Red', 'Blue', 'Green' ], 'None of these' ],
    'Blue',    # correct answer
);

$radio2 = RadioButtons(
    [ [ 'Red', 'Blue', 'Green' ], 'None of these' ],
    2,         # correct answer as an index (starting at 0)
    separator => $SPACE x 5
);

Setup

Call RadioButtons to create a radio button answer object. The format is

RadioButtons([choices, ...], correct, options);

For more details see parserRadioButtons.pl.

Setting the option separator to $SPACE x 5 results in a horizontal list of radio buttons. Note that $SPACE should be used and not   so that this works in both html and hard copy.

BEGIN_PGML
My favorite color is

[_]{$radio1}

The same question with horizontal options:

My favorite color is [_]{$radio2}
END_PGML

Statement

This is the problem statement in PGML. 
BEGIN_PGML_SOLUTION
The correct answer to the first is [$radio1->correct_ans].

The correct answer to the first is [$radio2->correct_ans].
END_PGML_SOLUTION

ENDDOCUMENT();

Solution

The correct_ans method can be called to get the correct answer.