1. Student's full name: Dang Thi Hong Hanh
2. Gender: Female
3. Date of birth: January 8, 2000
4. Place of birth: Thai Binh
5. Decision No. 4058/2022/QD-XHNV dated December 28, 2022, of the Rector of the University of Social Sciences and Humanities, Vietnam National University, Hanoi, recognizing the student.
6. Changes in the training process: None
7. Thesis title: The relationship between eating habits, body satisfaction, and feelings of happiness in adults.
8. Major: Psychology; Code: 8310401
9. Scientific supervisor: Assoc. Prof. Dr. Truong Thi Khanh Ha, Faculty of Social Sciences and Humanities, Vietnam National University, Hanoi
10. Summary of the thesis results:
This cross-sectional quantitative study on "The relationship between eating habits, body satisfaction, and happiness in adults" focuses on understanding the current situation and clarifying the relationship between these two factors. A survey was conducted from April to May 2024 using a convenient sampling method, collecting 239 adults (aged 18 to 45) with an average age of 24.14, SD = 5.39, of which 76.2% were female and lived primarily in urban areas of Hanoi, Thai Binh, and Hung Yen provinces. Participants completed a questionnaire consisting of two parts. Part 1 included demographic information (including gender, year of birth, weight and height index, area of residence, economic situation, current occupation, family type, educational level, etc.). Part 2 includes research tools: Eating Habits Scale: Importance of food to health, frequency of meals at residence, frequency of consumption of food groups and beverages, emotional eating habits, daily meal times (number of meals at regular times per day). Body Satisfaction Scale in the overall scale; Body Image-Self Relations Questionnaire-Appearance Scales MBSRQ-AS (Cash, 2000) adapted in Vietnam by authors Truong Thi Khanh Ha and Phan Thi Thao (2021) consisting of 25 items; Mental Health Continuum – Short Form (Keyes (1998, 2002)), abbreviated as MHC-SF, adapted in Vietnam by author Truong Thi Khanh Ha (2015) consisting of 14 items. The research results show that relatively healthy eating habits in adults are reflected in eating regular meals, consuming plenty of fruits and vegetables and water, and limiting sugary drinks and alcohol. Adults have relatively good body satisfaction and a high sense of happiness. Differences exist across groups: Women are more concerned about their appearance and tend to eat more emotionally than men. The group over 25 years old has healthier eating habits and a higher sense of happiness than the 18-24 age group. Higher income tends to lead to healthier eating habits and higher life satisfaction. There is a statistically significant correlation between eating habits, body satisfaction, and happiness in adults. In terms of predictive relationships: Eating habits (breakfast, water) explain 13% of the variation in perceived happiness. Body satisfaction explains 27.5% of the variation in perceived happiness. Body satisfaction mediates the relationship between eating habits and perceived happiness. Economic status and exercise activity act as moderating variables in the relationship between eating habits and body satisfaction and perceived happiness.
INFORMATION ON MASTER'S THESIS
1. Full name: Dang Thi Hong Hanh
2. Sex: Female
3. Date of birth: 08/01/2000
4. Place of birth: Thai Binh
5. Admission decision number: 4058/2022/QD-XHNV Dated: December 28, 2022
6. Changes in academic process: No
7. Official thesis title: The Relationship Between Eating Habits, Body Satisfaction, and Subjective Well-Being in Adults
8. Major: Psychology Code: 8310401
9. Supervisors: Truong Thi Khanh Ha, University of Social Sciences and Humanities, Vietnam, National University, Hanoi, Vietnam
10. Summary of the findings of the thesis:
A cross-sectional quantitative study titled “The Relationship Between Eating Habits, Body Satisfaction, and Subjective Well-Being in Adults” focused on investigating the current situation and clarifying the relationships among these variables. The survey, conducted from April to May 2024, employed a convenience sampling method and collected data from 239 adults aged 18 to 45 (mean age = 24.14, SD = 5.39). Among the participants, 76.2% were female, and most resided in urban areas of Hanoi, Thai Binh, and Hung Yen provinces. Respondents answered a questionnaire divided into two sections. Section 1 included demographic information such as gender, year of birth, weight and height indices, area of residence, economic status, current occupation, family type, and educational level. Section 2 confers of research instruments: the Eating Habits Scale, which measures the importance of food for health, meal frequency at home, consumption frequency of food and beverages, emotional eating habits, and daily eating schedule (number of on-time meals per day); the Body Satisfaction Scale, adapted from the Multidimensional Body-Self Relations Questionnaire - Appearance Scales (MBSRQ-AS) (Cash, 2000) by Truong Thi Khanh Ha and Phan Thi Thao (2021), with 25 items; and the Subjective Well-Being Scale, adapted from the Mental Health Continuum – Short Form (MHC-SF) by Keyes (1998, 2002) by Truong Thi Khanh Ha (2015), with 14 items. The findings indicate that adults demonstrate relatively healthy eating habits, such as regular meals, high consumption of vegetables and water, and limited intake of carbonated drinks and alcohol. They reported moderate levels of body satisfaction and subjective well-being. Females were found to care more about appearance and showed a higher tendency for emotional eating compared to males. Adults over 25 demonstrate healthier eating habits and greater well-being than those aged 18–24, while higher income is linked to healthier eating habits and greater life satisfaction. A significant statistical relationship was observed between eating habits, body satisfaction, and subjective well-being. In predictive relationships, eating habits (eg, breakfast and water consumption) accounted for 13% of the variance in subjective well-being, while body satisfaction explained 27.5% of the variance. Body satisfaction played a mediating role between eating habits and subjective well-being. Additionally, economic status and physical exercise served as moderators in the relationships between eating habits, body satisfaction, and subjective well-being.
USSH Hanoi Forum 2026