“…In addition, substantial empirical evidence, which would provide additional rationale for their use (Weigle, 1997) is not available (Donnellan, 1984;Kaiser, 1993;Meyer & Evans, 1993;Murphy et al, 1993). The lack of substantial empirical evidence has led several researchers (e.g., Mulick & Kedesdy, 1988;Mulick & Linscheid, 1988;Toogood, 1993) to suggest that the whole approach is an unsuccessful marriage between values and technology in which, as Horner et al (1990) suggest, the values are better defined than the technology.…”