Lucy María Reidl-Martínez

Confiabilidad en la medición

Reliability of measurement Abstract In quantitative educational research, instruments for data collection should lead to the vali- dity and reliability of results. A question that researchers are frequently referred to is how high or how large must the reliability coefficient be. This depends on the purpose and impor - tance of the decisions to be made, based on the scores obtained by the subjects. Reliability is a necessary attribute in all quantitative tests used to assess someone. The present paper aims to address the reliability of the measurement. To achieve the following chapters are re- viewed: theory of measurement error, domain-sample model, temporal stability or stability coefficient, parallel forms or stability coefficient and equivalence and some of the most used internal consistency coefficients.