3. Conceptual Framework
The concept of this research is to investigate the relationship of independent and dependent variables. Understanding the roles that these variables play in the research is necessary because it can help researchers to ensure that the data is analyzed and explained accurately in order to reduce the errors, which can result in the conclusion. There are two main types of variables, namely, dependent and independent variables. These variables should be clear. In empirical research, it is useful to understand what these variables are in order to prepare examples, control experiments and so on. A dependent variable is described as a variable that evaluates that experimental consequence, while an independent variable is defined as a variable that is manipulated by the experimenter. In most experiments, the impact of independent variables on the dependent variable is observed (Davis and Bremner, 2006). Regarding this survey, dependent and independent variables can be set as the following. Product and service satisfaction is set as a dependent variable, and a gender difference is established as an independent variable. Figure below shows the relationship between independent and dependent variables.