“…If they were of different types, the pair was coded zero. There are good grounds, both theoretically and empirically, to expect people to have consistent program type preferences (e.g., Adams, 1997;Eastman et al, 1997;Tiedge & Ksobiech, 1986;Webster & Phalen, 1997). Therefore, program pairs of the same type should enjoy higher levels of inheritance.…”