Effect Size Calculator

About This Tool

This tool is a comprehensive Effect Size Calculator designed for researchers, statisticians, and data analysts. It supports multiple effect size metrics, including Cohen's d, Pearson's r, and odds ratios. Users can input means, standard deviations, sample sizes, and proportions as applicable. The calculator processes these inputs with appropriate formulas to provide instant effect size results, confidence intervals, and interpretive summaries. It’s ideal for study planning, data interpretation, and meta-analyses. The user-friendly interface offers real-time updates, options to copy and export results, and adaptive responsiveness for desktop and mobile devices. Built with accessibility in mind, it ensures high contrast, keyboard navigation, and screen reader compatibility. Whether assessing the magnitude of intervention effects, differences between groups, or relationships between variables, this tool simplifies complex calculations, enabling users to focus on insights rather than math. Its flexibility and speed make it suitable for academic, clinical, or industry research projects, helping to improve accuracy, efficiency, and clarity in statistical reporting.

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