The intention of this article is to define quantitative research and explain why I choose this research approach. Regarding Marczyk, DeMatteo and Festinger (2005) suggest, careful consideration of an appropriate research design is necessary when the researcher wishes to answer specific questions, clearly define variables, and measure the hypothesis. It is important to choose the appropriate research design because each type of research design has its own characteristics and methodology. It is therefore important to understand that all research models have both strengths and weaknesses. Therefore, the researcher must make an informed and personal decision regarding the correspondence between the types of variables to be studied and the strengths and weaknesses of the different methods (Herzog, 1996). Research design can be classified into two main categories: quantitative research and qualitative research. These two types of searches are different. Quantitative research involves using numbers and closed-ended questions in quantitative hypotheses. On the other hand, qualitative research focuses on the use of words and open-ended questions in qualitative interview questions (Creswell, 2009). As Greener (2011) explains, “Quantitative research is primarily concerned with techniques for analyzing numbers. Quantitative data are the numbers that we use as data, or the results of the numerical processes that research has been thought about (pp. 2-3). Greener (2011) ibid further describes quantitative methods as “social research methods that are based on numbers in one form or another. Quantitative methods are generally deductive and are extremely powerful for testing hypotheses because of their strong internal validity” (p. 202). John W. Cr...... middle of article ...... every finding. For example, if we want to know whether or not students' self-esteem and social background have an influence on their achievement, we could revisit the theory and hypothesize that low self-esteem is influenced by class. lower social status. and prove this suspicion using quantitative research (Muijs, 2004). In conclusion, it is often difficult to choose between quantitative and qualitative research because there seems to be an overlap between qualitative and quantitative when looking in depth at the researchers' actual beliefs ( Muijs, 2004). Clearly, we can say that both quantitative and qualitative research are appropriate in particular situations and inappropriate in some situations. We should not select a research model simply because we are more familiar with one method or another that recommends a particular model..