item_weighting          Item Weighting According to the Kilic & Dogan
                        (2019) Method
weighted_mean_score     Calculate Weighted Mean Scores Using the
                        K<c4><b1>l<c4><b1><c3><a7> & Do<c4><9f>an
                        (2019) Method
weighted_sum_score      Calculate Weighted Sum Scores Using the
                        K<c4><b1>l<c4><b1><c3><a7> & Do<c4><9f>an
                        (2019) Method
