“…Ng, Sorensen, & Eby, 2006;Spector, 1982;Twenge, Zhang, & Im, 2004). Secondly, as emphasized by Weiner, Nierenberg, and Goldstein (1976), the shortage of experimental and longitudinal studies prevents the researchers from inferring causal relationships. Although most of the research in the industrial psychology is correlational by nature (Mitchell, 1985), the conceptual difficulties of locus of control make this shortcoming more critical, as reported correlations can easily be interpreted using alternative theories.…”