Table 5. Comparison of the retained ideas, retained extension, density and coherency in relation to gender and category. Gender Category Male Female Under 15 Under 17 Under 20 Category average Category average p Category average Category average Category average p Retained Ideas 2.65 2.00 .009 2.42 2.31 2.28 .818 Retained Extension 18.29 12.41 .021 16.58 14.25 15.33 .610 Density 17.29 18.30 .232 16.71 20.50 16.72 .779 Coherency 57.93 80.52 .030 73.83 71.80 63.28 .533