For the third part, two hundred and fifty
questionnaires were distributed to staff holding
management positions at Thammasat University;
these were either mailed or delivered by hand.
Ninety-one were returned, giving a return rate of
36%. In this part, staff holding management
positions refers to both academic and nonacademic
staff holding one of these positions: Rector,
Associate Rector, Assistant Rector, Dean, Associate
Dean, Assistant Dean, Head of Department, Director
of institutes or centres, Head of supporting unit or
any other type of unit. The reason only management
staff was selected is that management staff are
potential users of the model and also responsible for
establishing the performance measurement
framework. The method used is stratified random
sampling, in which the study population is grouped
according to the academic-nonacademic
management staff. In the case of Thammasat
University, the total number of management staff
(both academic and nonacademic) is 391. Out of
these, 70% are academic and 30% nonacademic
staff. This means there are 274 academic staff
holding management positions and 117
nonacademic staff holding management positions.
By applying the formula for sample size with a
margin of error not exceeding 5% and with a 95%
level of confidence, the total sample number is 250
with 160 being academic staff and 90 being
nonacademic staff. Table 1 illustrates the population
and sampling of the survey.