3.2. Subjects
The sample technique used for this study was cluster
sampling based on a comparative analysis of
other methods using Balian’s matrix guide worksheet
(Balian, 1994). It created a sample of members from
each process stratum using either a simple random
sampling or systematic sampling. Table 1 shows the subject distribution in which there were 40 workers,
equivalent to 30% of total CL workers, chosen to participate
in the survey. Their names were obtained from
the supervisor and they were randomly picked by the
researchers. In LPL, there were 21 workers, equivalent