Analysis of measurement results using the Donlon and Fischer methods

Mental measurement is done by giving quantitative values to the human mind, this method is a big step in the formation of mathematical concepts and the logic of one's thinking in order to be able to reason well. However, sometimes math can get really scary, because it's too difficult so it's important to learn the results of mental measurements through math tests. The purpose of this study was to analyze the results of mental measurements using the Donlon and Fischer method. The research methodology uses experiments with a quantitative approach. Quantitative data collection using a questionnaire method in the form of a test instrument. Quantitative data collection was obtained by testing the validity and reliability. The sample of this research is 700 students of class IX science high school in Jakarta. The results showed that the Donlon and Fischer method was the right method for detecting abnormal mental measurement results. The next conclusion, the impropriety of mental measurement results through mathematical tests can occur in the correct score model. Research implementation, Donlon and Fischer methods can be used to analyze the results of mental measurements through the difficulty level of items on the delta scale as the basis for calculations.