This study intends to develop a scale to determine the facebook addiction levels of adolescents. A data set obtained from 364 high school students was used in order to study the factor construct of the scale through Exploratory Factor Analysis (EFA) and it was observed with the analysis that 9 items were removed from the scale and the remaining 25 items were collected under 3 factors. Confirmatory Factor Analysis (CFA) was applied to the data set obtained from 536 students from a similar high school group in order to confirm the construct that was determined by the exploratory factor analysis and it was found that the construct revealed by EFA and thus created dimensions were statistically confirmed and that the convergence validity criteria including values like composite reliability and average variance extracted were statistically satisfactory. It was observed that the coefficients on the whole of the scale and on each factor were satisfactory. In conclusion, Cronbach's alpha internal consistency coefficients and values obtained as a result of EFA and CFA demonstrated that the scale had a reliable and valid measurement results to define the facebook addiction level.

Facebook Addiction, Scale Development, Factor Analysis, Convergence Validity

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