其他摘要：The objectives of this research are as follows: (1) to study executive function among elementary students; (2) to compare executive function with an experimental group before and after participation in a guidance activity package; and; (3) to compare executive function after participating in guidance activities between experimental and control groups. The subject group were divided into two groups: the first group were students in upper primary school in Bangkok by using multistage random sampling with 346 people and the second group were selected individually. The 60 fifth-grade students used purposive sampling. The instruments used in this study included an executive function test for primary students, including a self-assessment version and a teacher assessment version with a reliability of .92 and a series of guidance activities packages to enhance the executive function of the students. The statistics used to analyze the data were mean, standard deviation, a dependent t-test and an independent t-test. The research results were as follows: (1) the executive function of elementary students as a whole was at a high level and in each, all of the indicators were at a high level except emotional control in dimension of executive function, which was at a low level; (2) the experimental group had a significantly higher executive function scores than before participating in guidance activities at a .05 level; and (3) the experimental group had significantly higher executive function scores than the control group at a level of .05.
