ContentsIntroduction 2How variables can be measured 2State the difference between reliability and validity in research 3Discuss various data collection methods 4State the role of statistics in research 4Discuss the difference between qualitative and quantitative analysis of the data 4Conclusion 4Bibliography 5IntroductionIn this document we will present the basic terms to help a researcher create successful research documents. As it is always said that every successful thing that is accomplished there must be some sort of procedures to follow and understand the terms that a researcher will have to understand before he can complete the research paper. The following will provide the researcher with a clear understanding of the terms used for research and how to apply them, as well as a brief description of the methods from which a researcher can choose.How variables can be measuredDuring the research it is explained that a variable is a characteristic that can be measured in various ways, it is able to change from a certain group to another group or even within a person over time, and Bill (2006) also states that measurement is a precise core of any type of research, and is when numbers are assigned to certain things or objects. Jaspara (2012) notes that when working on research it is definitely proven that certainly everything will be reduced to numbers due to measurements. As stated by Thomas & Mildred (2007) there are certainly many ways to measure variables depending on a specific research. Poriek (2003) briefly explained that variables can be measured directly from a person's height... to the center of the paper... yn & Baccon.CANDICE, KISS, M., THOIRPE, R., JACKSON, T and LOWET, A. (2007) Management Research Committee. Fourth edition.London: SageFRANK - NACUIIAS, C., & Naamias, D. (2009) Research methods in the social sciences .8th edition. United States: Worth.JASPARA, ASHOK. (2012) The foundations of knowledge management: an integrated approach. Third edition. Prentice Hall.John Lewis S. (2009) Principles of Information Technology Research 2nd EditionOxford Dictionary. Second edition. Oxford University PressTHOMAS, P. MILDRED, K (2007) Research methods in business. 1st edition.Harlow: Financial Prentice Hall.TIA, A. (2010) The Statistics Using SPSS. Third edition. London SageROBERT, C. (2005) World of Research. First edition. Oxford: BlackwellSANDRA, JOHN., LEIN, PHILL. and Thornhill, Adrian. (2010) Research methods for businesses. Fourth edition.