“…Of the studies listed in Table 1, 7 based their findings upon fewer than 10 cases, 15 used fewer than 50 cases, 21 used fewer than 100 cases, and 29 used fewer than 300 cases. Two studies used between 300-500 cases (Gagnon, 1965;Sedney & Brooks, 1984), and 3 studies based their findings on over 500 cases (Fritz et al, 1981;Kilpatrick, 1986;Landis, 1956). All but 2 studies published since 1981 have used over 100 cases.…”