May i know how to calculate the 10 items equally divided between attitudes to two brands of a items responding to by 104 people? Total Variance Explained Initial Eigenvalues Extraction Sums of Squared Loadings Rotation Sums of Squared Loadings Component Total % of Variance Cumulative % Total % of Variance Cumulative % Total % of Variance Cumulative % 1 2.044 20.436 20.436 2.044 20.436 20.436 1.860 18.596 18.596 2 1.747 17.465 37.901 1.747 17.465 37.901 1.797 17.974 36.570 3 1.280 12.796 50.697 1.280 12.796 50.697 1.311 13.115 49.685 4 1.001 10.014 60.711 1.001 10.014 60.711 1.103 11.025 60.711 5 913 9.126 69.837 6 .790 7.903 77.740 7 .668 6.681 84.421 B 594 5.941 90.362 9 543 5.429 95.791 10 .421 4.209 100.000 Extraction Method: Principal Component Analysis