การพัฒนาแบบวัดคุณลักษณะการอยู่อย่างพอเพียงสำหรับนักเรียนชั้นมัธยมศึกษาตอนต้น ตามหลักสูตรแกนกลางการศึกษาขั้นพื้นฐาน พุทธศักราช 2551

Abstract

The purposes of this study were: 1) to study the aspects of sufficiency,
2) to construct the Sufficient Life Scale (SLS), 3) to verify the qualities of the SLS, and
4) to create norms and a manual of the SLS for the lower secondary students. The sample
was 1,866 lower secondary students in the academic year 2557 of schools under the
Secondary Educational Service Area Office 18 which were obtained by employing a
multi-stage random technique. The situational stems and four level choices of morals
were included in three sub-scales: moderation scale, reasonableness scale, and
self-immunity scale. Each choice of SLS was scored one for the lowest and four for the
highest level of Sufficiency. The qualities of SLS were examined in terms of content
validity, concurrent validity, construct validity, and internal consistency index for reliability.
The results showed that IOC ranged from 0.60 to 1.00. The t-test results showed high
discrimination power of each question (t-values ranged from 2.27 to 10.37 at 0.05 and 0.01
significance levels). The internal consistency of scales by using the Cronbach’s alpha
coefficient were 0.73, 0.89 and 0.85, respectively. The indices of multidimensional scaling
(MDS) analysis were the stress index at 0.228 and RSQ at 0.641 that showed optimal
dimensions of SLS. The T-scores of SLS ranged from 19 to 83.