close to significancep < 0.05
Pairwise comparisons (using a corrected threshold for multiple comparisons: α′ = 0.017) showed that generalisation within aldehydes was significantly higher than within primary alcohols (χ 2 = 11.80, df = 1, p < 0.0006) and ketones (χ 2 = 9.90, df = 1, p < 0.005) and close to significance in favour of aldehydes when compared to secondary alcohols (χ 2 = 4.40, df = 1, 0.017 < p < 0.05).