“…All studies conducted before 1975 found some type of negative effects of waiting for services (Levy, 1963; Sinnett & Danskin, 1967). From 1975 to 1982, four studies had mixed or inconclusive results (Christensen et al 1975; McKitrick & Gelso, 1978; Schiller, 1976; Shueman et al, 1980), and one study found minimal negative effects (Archer, 1981). Since 1982, four studies have failed to find significant negative effects (Anderson et al, 1987; Archer, 1984b; Freund et al, 1989; May, 1990), one study had mixed results (Rodolfa et al, 1983), and one study had incidental reports of negative effects (Kokotovic & Tracey, 1987).…”