This book is devoted to the description of the research methods, the sample of informants and research tools used in this study and to the presentation of the advantages and disadvantages of each research instrument.The book goes through a methodological design of the research work, therefore it is devoted to the description of the research methods, the sample of informants and research tools used in any study and also to the presentation of the advantages and disadvantages of each research instrument. The researcher explains the objectives of the research and describes the research design.