PSYCHOLOGICAL AND SITUATIONAL ANTECEDENTS OF SUPERVISORY SOCIAL SUPPORT BEHAVIOR IN THAI HEALTH CENTERS
 
Bhanthumanvin, D., School of Social Development, NIDA, Thailand
 
Antecedents of supervisory social support behavior (SSSB) in terms of psychological characteristics (PC) and situational factors (SF) were investigated. Data of 509 supervisors in health centers in Thailand were analyzed by performing Multiple Regression Analyses both totaled and stepwised in the total sample and in twelve subgroups. Hypothesis based on the interactionism model was confirmed by the finding that six PC and five SF together yielded better prediction of the variance of the SSSB than did the PC or the SF alone. These eleven variables yielded the highest percentage in predicting the SSSB (58.6%) in male supervisor with male subordinate which was 15% higher than the PC (43.2%), and 36.3% higher than the SF (32.6%). For this group, need for achievement (nAch) was the strongest predictor, followed by supervisor-subordinate relation (SMR), empathy, and distance of workplace. The results also supported the hypothesis that six PC together yielded better prediction of the variance of the SSSB than did the first entering psychological predictor. The male supervisor with male subordinate also showed the strongest prediction of the SSSB (43.2%), while the first entering predictor, nAch, could account for only 27.4%. The similar pattern of finding also found in SF. The male supervisor with male subordinate, again, showed that all five SF together predicted the variance of the SSSB (22.3%) better than did the first entering situational predictor, SMR (12.3%). These findings form the basis for future leadership/supervisory training and research in Thailand.