Please regarding the 36 items under the 9 facets in the Spector's Job Satisfaction Survey, can i use just 1 item under each facet for my questionnaire?
People have shortened the scale in two ways. Some have used all 9 facets but just fewer items per facet. I've seen a few people use 2 items per facet. Others have used only some of the subscales. You could use a single item per facet, but the problem is lowered reliability, and likely complaints from journal reviewers. A source on the use of single item job satisfaction measures is the following:
Wanous, J. P., Reichers, A. E., & Hudy, M. J. (1997). Overall job satisfaction: how good are single-item measures? Journal of Applied Psychology, 82(2), 247-252.