This study included the following objectives: 1) to study the demographic characteristics that influenced the consumer buying behavior for Honda cars 2) to examine the consumer perception that influenced a decision to choose Honda cars and 3) to investigate the marketing communication channel that had a decisive influence towards consumer buying behavior for Honda cars. The 400 customers who reserved Honda cars or signed contract of sale with the Honda car dealers at the showrooms in Bangkok were selected as a sample. This quantitative research was conducted by survey distribution of questionnaire for data collection data analysis using percentage mean and standard deviation and statistical hypothesis testing: T-test F-test and correlation analysis. Five appointed professionals had assessed the Index of Item - Objective Congruence (IOC) and the result of content validity for every item in the questionnaire was interpreted at 0.94 level with the reliability test result of the questionnaire at 0.9667 level.

This Study aims to 1) study the clothing purchasing behaviors via internet medium of the teenagers and 2) study the marketing strategies in the form of internet medium for teenager clothing businesses. This is only to study the purchasing behaviors via internet medium of the 400 teenagers via facebook website. The data were collected by using sets of questionnaire and the software packages were used in data analysis. According to the results of the study of the clothing purchasing behaviors via internet medium of the teenagers most of the sample groups were female at the rate of 72.8% being aged 19-21 years at the rate of 50.8% residing in the Bangkok Metropolitan Region at the rate of 47.8% studying at the bachelor’s degree at the rate of 63.8% most of whom were students at the rate of 49.3% having income in the amount of 10001-15000 Baht at the rate of 37.8% most of whom purchased casual wears at the rate of 39.7% fashion clothes at the rate of 42.8% with the brand influencing the purchase at the rate of 26.3% each piece of the clothing was in the amount of 501-1000 Baht at the rate of 23.5% purchasing 1 time per month at the rate of 47.8% purchasing 2 pieces per time at the rate of 36.2% the sample groups ordered clothing from abroad at the rate of 55.5% paying via bank account at the rate of 54% purchasing the clothing as ready for delivery at the rate of 97.5% and the factor on marketing strategies had the average score in the high level at the rate of 3.86%.

The objective of this research is to study Valentine Present Buying Behavior undergraduate students Faculty of Home Economics Technology Rajamangala University of Technology Phranakhon. The purpose of this research were firstly to Valentine Present Buying Behavior of the bachelors’ Faculty of Home Economics Technology of Rajamangala University of Technology Phranakhon and secondly to study the relationship of between personal background and Valentine Present Buying Behavior of undergraduate students Home Economics Technology Rajamangala University of Technology Phranakhon. This research was divided into marketing factor and survey research. The sampling were 305 undergraduate students faculty of Home Economics Technology of Rajamangala University of Technology Phranakhon. The research tool was questionnaires and by analyzing statistical packages from social science programs and by using percentage and means. The result were found that Most undergraduate students faculty of Home Economics Technology Rajamangala University of Technology Phranakhon had bought Valentine presents from shops. They were bought for boy friends or girl friends price was 100 – 500 Bahts. The buying reason was depended on present styles. Flowers were the first buying Valentine present the planning in Valentine present buying was saving the most buying place was department stores. Friends accompanied them Valentines presents. Buyer decided by themselves on Valentine’s Day buyers bought Valentin presents about 1 - 5 pieces. Those who had never bouht Valentine Day’s present gave the reason of extravagance.

The purposes of this research were 1) to study personal factors and family factors of High school students at Prakhanongpittayalai School. 2 ) To study food consumption patterns of high school students at Phrakhanongpittayalai School according to the new normal. 3) Comparison of food consumption patterns according to the new normal of high school students at Phrakhanongpittayalai School classified by personal factors. 4) Comparison of food consumption patterns according to the new normal of high school students at Phrakhanongpittayalai School classified by family factors. The sample was obtained by random sampling of 300 students from high school students at Phrakhanongpittayalai School and using online questionnaires as a research tool. The data were analyzed by using frequency percentage mean standard deviation t-test and one-way analysis of variance. The results revealed that 1) most of the samples are female age 18 years old studying in Mathayom 6 earning between 100- 150 baht per day. The housing types are townhouse apartment or flat. The number of family members is more than 3 people. The education level of their parents is lower than a Bachelors degree and work as employees with an average family income of 15000 – 30000 baht per month. 2 ) Food consumption patterns of high school students at Prakanongpittayalai School according to the new normal found that the overall level was at a high level. When considering each aspect it was found that the aspect with the highest mean was the perception of food consumption according to the new normal followed by the aspect of food consumption characteristics of the family according to the new normal and the least aspect was the food type selection according to the new normal. 3) Comparing dietary patterns of high school students at Prakanongpittayalai School according to the new normal classified by personal factors it was found that gender age educational level parental income per day and housing characteristics were significantly differed in opinions on consumption patterns at the . 05 level. 4) Comparison of dietary patterns according to the new normal classified by family factors found that the occupations of parents and the average family income per month haddifferent effects on the new normal dietary patterns of high school students at Phrakhanongppittayalai School. There was a statistically significant difference at the .05 level except for the number of family members and their parents’ education were not statistically different at the .05 level.

The objectives of this research were 1) to study the behavior and decision to buy online food of vocational students in Phitsanulok Province 2) to compare of personal factors with behavior and decision to buy online food of vocational students in Phitsanulok Province and 3) to study online food shopping behavior affecting to buy online food decisions of students vocational in Phitsanulok Province. The research was a quantitative research using questionnaires from 400 vocational students in Phitsanulok Province. Data was systematically analyzed by percentage mean standard deviation (S.D.) t-Test One-way ANOVA and multiple regression analysis. The result showed that the behavior of buying online food was at moderate level. The decision to buy online food was at moderate level. Difference Personal factors including gender year of study type of subject housing type and monthly income had different of behavior of online food shopping with no statistical significance. Difference Personal factors including type of subject and monthly income had different of decision to buy food online with statistical significance at .05. Online food purchasing behavior effecting decision to buy food online with statistical significance at .05.