Adjusting the level calculation for 3 ranking levels.

gistfile1.txt

            // Calculates knowledge level based on number of correct answers
            calculateLevel: function(correctAnswers) {
                var percent = (correctAnswers / questionCount).toFixed(2),
                    level   = 0;

                if (plugin.method.inRange(0, 0.330, percent)) {
                    level = 3;
                } else if (plugin.method.inRange(0.331, 0.660, percent)) {
                    level = 2;
                } else if (plugin.method.inRange(0.661, 1.00, percent)) {
                    level = 1;
                }

                return level;
            },