The purpose of this descriptive study is to behaviors perceived communication effectiveness and the relationship between communication behaviors and perceived intra-organizational communication effectiveness using 70 sets of closed-end questionnaires as a tool for data collection from employees at a selected independent organization. Statistical methods for data analysis included percentage mean( μ ) standard deviation( σ) and correlation coefficient. The results of the study indicate that most of the survey respondents ae male aged 51 years and older with a marital status. The education level is bachelor’s degree. In respect of information perception intra-organization matters are the main priority among employees with a focus on the information within the organizational unit they belong to or benefits related to them. With regard to communication frequency and channels internal email is mainly used followed by Facebook and Line respectively due to restricted access to communication tools at work. On aspect of intra-organizational communication efficiency straight-to-the-point communication speed and perception are found mainly with the matters within the organization or the work unit the employees belong to. When considering the credibility of the information the emphasis is placed on the content of the order coming from within the organization substantially affecting the communication efficiency. Thus there is the close relationship between information perception and intra-organizational communication efficiency as the correlation is significant at 0.05 level. It can be said that employees at this organization pay considerable attention to the information within organization.

This research aims to study about usage behavior of Facebook users their expectations uses and gratifications as well as the relation between expectations uses and gratifications of Facebook users and communication behavior found among students of 9 Faculties at Rajamangala University of Technology Phra Nakhon who are Facebook users. The research is conducted using survey as a research method and the data used in this research is taken from a sampling group of 400 students. The results of the study were as followed: the expectation uses gratification of Facebook users has positive relation at high level with communication on Facebook. Moreover the outcome has shown that the majority of the students at Rajamangala University of Technology Phra Nakhon use Facebook on a daily basis. Their expectation and usage levels are high and moderate respectively while gratification level is high.

The purposes of this study were to investigate l.political information exposure to mass media 2. political participation of people in Bangkok metropolitan area. 3.The relationship between political information exposure to mass media and political participation and 4.The difference between demographic characteristics of people in Bangkok metropolitan area with political information exposure to mass media and political participation. This was a survey study. The sample included 400 people in the Bangkok metropolitan area. The questionnaires were administered and the statistical package program was used to analyze the data through frequency percentage means standard deviations t-test f-test and One-Way ANOVA. The results revealed that political information exposure was most exposed via television because it included pictures and sound which were most reliable. However people in Bangkok metropolitan area political participation was at low level. There was no significant difference between political participation and political information exposure to mass media and people with different gender occupied whereas there was a significant difference but people in Bangkok metropolitan area with different age income and education levels. There was a significant relationship between political participation and political information exposure to mass media at .05 level. The suggestions included that political to be more advantage and power. Political participation people in Bangkok to exercise their voting rights by the elected representatives of most. Following by a list of activists as voters before the election and persuade other to exercise their voting rights respectively.

This research aims to study about usage behavior of Facebook users their expectations uses and gratifications as well as the relation between expectations uses and gratifications of Facebook users and communication behavior found among students at Rajamangala University of Technology Phra Nakhon who are Facebook users. The research is conducted using survey as a research method and the data used in this research is taken from a sampling group of 400 students. The results of the study were as followed : 1. The students at Rajamangala University of Technology Phra Nakhon although are different by gender age year of studies faculty GPA and family’s income share the same kind of behavior when using Facebook. 2. The students at Rajamangala University of Technology Phra Nakhon who are different in gender age year of studies faculty GPA and family’s income share the same kind of expectation when using Facebook. 3. The students at Rajamangala University of Technology Phra Nakhon whose family incomes are varied also have different uses of Facebook. 4. The students at Rajamangala University of Technology Phra Nakhon who are different in gender age year of studies faculty GPA and family’s income do not have any difference in their gratification while using Facebook. 5. The expectation uses gratification of Facebook users have positive relation at high level with communication on Facebook. Moreover the outcome has shown that the majority of the students at Rajamangala University of Technology Phra Nakhon use Facebook on a daily basis. Their expectation and usage levels are high and moderate respectirely while gratification level is high.