TTLA: Deviant behavior of high school students and proposed intervention model (Case study in Dong Thap province)

1. Full name of PhD student: Kieu Van Tu 2. Gender: Male
3. Date of birth: September 5, 1980 4. Place of birth: Hanoi
5. Decision to recognize PhD students: Decision No. 2775/2020/QD-XHNV, dated December 31, 2020 of the President of the University of Social Sciences and Humanities, VNU, valid from December 31, 2020 to December 31, 2023.
6. Changes in training process (if any):
7. Thesis topic: Deviant behavior of high school students and proposed intervention model (Case study in Dong Thap province)
8. Major: Social Work 9. Code: 9760101.01
10. Scientific instructor:
Instructor 1: Associate Professor, Dr. Nguyen Thi Nhu Trang
Instructor 2: Dr. Mai Linh
11. Summary of new results of the thesis:
Research methods
Document research method: The thesis studied 204 documents related to deviant behavior of high school students and related factors. Of which, domestic documents accounted for about 1/3, the rest were documents in foreign languages.
Survey method by questionnaire: This is the main method of the thesis. The study conducted a questionnaire survey on 914 samples of high school students at 7 schools in Dong Thap province, including 4 schools in the city of the province, 3 schools in the districts.
In-depth interview method: The study also conducted 15 in-depth interviews with students and 10 in-depth interviews with high school teachers for the survey.
Key results
The HVLC of high school students in Dong Thap are mainly less serious behavioral patterns, tending towards school discipline violations and some aggressive behavior patterns. Cyber-discipline violations and substance abuse are less common.
Family emotional attachment reduces students' HVLC.
School engagement reduces student HVLC.
Family disciplinary styles increase students' HVLC
School discipline reduces student HVLC
Learning motivation reduces students' HVLC
Perceived self-worth reduces students' HVLC
Student depression symptoms increase student HVLC.
Proposing a multi-level intervention model to reduce deviant behavior of high school students. Social work activities are carried out towards intervention at the individual, family and school levels.
New contributions of the thesis
The thesis outlines some research directions on the impact of factors on deviant behavior of high school students.
The thesis has evaluated the impact of factors on deviant behavior. Factors affecting deviant behavior include: Family attachment factor, school attachment factor, school discipline factor, learning motivation factor, self-awareness factor, depression factor.
The thesis proposes a multi-level intervention model toaimed at preventing and intervening in deviant behavior of high school students.
Conclude
Family bonding and family discipline style are important factors affecting HVLC. Therefore, social workers have a scientific basis to develop intervention activities and prevent HVLC at the family level.
School engagement and school discipline are important factors in reducing student HVLC. Therefore, social workers have a scientific basis to develop intervention activities and prevent HVLC at the school level.
Learning motivation, sense of self-worth, and expression of depression are important factors affecting students' HVLC. Therefore, social workers have a scientific basis to develop intervention activities and prevent HVLC at the individual level.
Proposing a multi-level intervention model and activities aimed at preventing and intervening in deviant behavior of high school students.
12. Further research directions:
The research results of the thesis open up research directions on family engagement and school engagement in the context of educational innovation and cultural integration today. School engagement and family engagement are also topics that need to be studied in the future because in reality there are still quite a few studies on this topic in Vietnam.
Furthermore, the factor of depression needs to be studied more extensively because this factor is not only a mental health problem but also a factor that influences students' deviant behavior.
13. Publications related to the thesis:

INFORMATION ON DOCTORAL THESIS

Supervisor 1: Assoc. Prof. Dr. Nguyen Thi Nhu Trang
Supervisor 2: Dr. Mai Linh

Research methods
Literature review: The thesis has researched 204 documents related to high school students' deviant behaviors and related factors. Which, Vietnamese documents account for about 1/3, and the remaining are documents in foreign languages.
Survey method: This is the main method of the thesis. The study conducted a questionnaire survey on 914 samples of high school students at 7 schools in Dong Thap province, including 4 schools in the cities and 3 schools in the districts.
In-depth interview method: The study also conducted 15 in-depth interviews with students and 10 in-depth interviews with high school teachers.
Main results
The high school students' deviant behaviors in Dong Thap Province are mainly less serious deviant behavior, more inclined towards violations of school discipline, and some aggressive behavior patterns. Deviant behaviors on social networking and substance abuse are less common.
Family attachment reduces high school students' deviant behaviors.
School attachment reduces high school students' deviant behaviors.
Several family discipline styles increase high school students' deviant behaviors.
School discipline reduces high school students' deviant behaviors.
Learning motivation reduces high school students' deviant behaviors.
Self-awareness reduces high school students' deviant behaviors.
Depressive symptoms increase high school students' deviant behaviors.
They are reacting to a multi-tier intervention model to reduce the deviant behavior of high school students. Social work activities are carried out toward intervention at the individual, family, and school levels.
New contributions of the thesis
The thesis summarizes several research directions on the impact of factors on the deviant behavior of high school students.
The thesis has evaluated the impact of factors on deviant behavior. Factors affecting deviant behavior include family attachment, school attachment, school discipline, learning motivation, self-awareness, and depressive symptoms.
The thesis proposes a multi-tier intervention model to prevent and interfere in the deviant behavior of high school students.
Conclusions
Family attachment and several family discipline styles are important factors that impact high school students' deviant behaviors. Therefore, social workers have a scientific basis to develop intervention and prevention activities for deviant behavior at the family level.
School attachment and school discipline are important factors that reduce high school students' deviant behavior. Therefore, social workers have a scientific basis to develop intervention and prevention activities for deviant behavior at the school level.
Learning motivation, self-awareness, and depressive symptoms are important factors affecting high school students' deviant behavior. Therefore, social workers have a scientific basis to develop intervention and prevention activities for deviant behavior at the individual level.
Proposing a multi-tier intervention model and activities aimed at preventing and intervening in high school students' deviant behavior.

The research results of the thesis open up research directions on family attachment and school attachment in the current context of educational innovation and cultural integration development. Family attachment and school attachment are also topics that need future research because there are quite a few research projects on this topic in Vietnam.
Furthermore, depression needs to be explored more extensively because this factor is not only a mental health problem but also a factor that affects students' deviant behavior.