The research includes an overview of the study and its significance. It dealt on developing a watchful numerical personality scale for young middle-distance handball players. The research's methodology and procedures were described in Section III, where the research population was chosen from among the young handball players in the Central Region. After presenting and discussing the results, several conclusions were drawn, the most significant of which was the building of the mathematical personality measure vigilant for young handball players. The researcher used the building of the mathematical personality measure vigilance on the research community and the researcher used a number of statistical means to address the results obtained

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