This study contains 4 main purposes : (1) To study Terminal Values and Instrumental Values of secondary school students as well as  the ranks of those values. (2) To study the differences in Terminal Values and Instrumental Values due to differences in sex, level of education and value socialization. (3) To study correlations between Terminal Values and Instrumental Values. (4) To study interactions between Terminal Valres and Instrumental Values from variables such as value socialization and sex, family income, parental occupation, parental level of education. The samples of the study were 592  secondary school students in school in Bndgkok area which were under the control of Department of General Education, and who were selected for the study by multi-stage sampling technique. 
                Three sets of instruments were used to collect the data.  The first one was the questionaire concerning the socio-ecoonomic backgrounds of the students, the second one was for Terminal Values and Instrumental Values, and the third one was for the parental value socialization. The data were treated by Two-Way ANOVA, t-test, and Multiple Regression. 
                The results came out as follows  : 
                 1. The ranks of Terminal Values were " Peaceful in mind". "Having Easy Life", "National Security", "Peaceful in Society", "Self-Esteem", "Successful in Life", "Having Wealth and Material" and "Socially Respected". 
                2.  The ranks of Instrumental Values were "Practicing Moderate Way of Life", "Having High Capability", Gratitude", "Responsibility", "Kindness",  "Self-Control", 
Individualism"  and "Honesty". 
                3.  It was shown that there were diferences in social values due to sex difference. That was the male students ranked values such as  "Socially Respected", "Self-Control" and "Gratitude" higher than the female students. Whereby the female students ranked values such as "National Security" and Honesty" higher than the male students. 
               4.  It was also shown that there were sex differences in ranking personal values. That was the female students ranked values such as "Peaceful in mind", " Practicing Moderate Way of  Life ", "Indivedualism" and "Having High capability " higher than the male students. Whereby the male students ranked values such as "Having Wealth and Material" higher than the female students. 
                5.  It was shown that there were differences in levels of education in ranking personal values. That was the upper secondary students ranked values such as "Having Wealth and Material", "Successful in Life" and "Having High Capability" higher than the lower secondary school students. 
                6.  It was found that the lower secondary school students ranked values such as " National Security" and "Gratitude" higher than upper secondary school students. Whereby the upper secondary school students ranked values such as "Kindness" higher than lower secondary school students. 
                7.  It was found that the students who recieved higher levels of socialization on values such as "Peaceful in Society", "Having Wealth and Material ", "Natinal Security", "Peaceful in mind", Practicing Moderate Way of Life", "Honesty", "Having High Capability" and "Responsibilty" had higher levels of those values than the students who recieved lower levels of socialization. 
                8.  It was found that there were interactions between value socialization on "Self-Control" and father' s occupation as well as the interactions between value socialization on "Gratitude" and father's occupation. 
                9.  It was found that there were correlations among Terminal Values and Instrumental Values. That was the Instrumental Values such as "Honesty", "Practicing Moderate Way of  Life", "Having High capability", "Individualism", "Responsibility", "Gratitude" and "Kindness" having 40.92  % in perdicting the Terminal Values on "Socially Respected". In the mean time the instrumental Values on "Indivedualism", "Practicing Moderate Way of  Life" having 18.03 % in predicting Terminal Values on " Having Easy Life". The Instrumental  Values such as "Having High Capability", "Honesty", Gratitude" and " Responsibility" having 33.34 % in predicting Terminal Valres on  "Peaceful in Society". The Instrumental Values such as "Honesty", "Kindness" and "Gratitude" having 23.7 % in predicting "Having" Wealth and Material". Instrumental Values such as "Practicing Moderate Way of Life", "Honesty", 'Gratitude" and "Responsibility" having 24.44 % in perdicting Terminal Values on "Peaceful in mind". Lastly, Instrumental Values such as "Having High Capability" and "Individualism" having 15.82 % in predicting Terminal Values on "Successful in Life ".