{"id":20493208,"url":"https://github.com/exios66/cronbach-alpha","last_synced_at":"2026-03-10T05:31:00.234Z","repository":{"id":261302934,"uuid":"883358231","full_name":"Exios66/Cronbach-Alpha","owner":"Exios66","description":"RUST - Psychometrics","archived":false,"fork":false,"pushed_at":"2024-12-29T01:13:38.000Z","size":27,"stargazers_count":3,"open_issues_count":0,"forks_count":0,"subscribers_count":1,"default_branch":"main","last_synced_at":"2025-03-05T17:47:44.926Z","etag":null,"topics":[],"latest_commit_sha":null,"homepage":"https://exios66.github.io/Cronbach-Alpha/","language":"HTML","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"mit","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/Exios66.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null}},"created_at":"2024-11-04T20:31:31.000Z","updated_at":"2025-01-24T12:20:37.000Z","dependencies_parsed_at":"2025-01-16T05:54:55.857Z","dependency_job_id":null,"html_url":"https://github.com/Exios66/Cronbach-Alpha","commit_stats":null,"previous_names":["exios66/cronbach-alpha"],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/Exios66/Cronbach-Alpha","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/Exios66%2FCronbach-Alpha","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/Exios66%2FCronbach-Alpha/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/Exios66%2FCronbach-Alpha/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/Exios66%2FCronbach-Alpha/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/Exios66","download_url":"https://codeload.github.com/Exios66/Cronbach-Alpha/tar.gz/refs/heads/main","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/Exios66%2FCronbach-Alpha/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":30326055,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-03-10T05:25:20.737Z","status":"ssl_error","status_checked_at":"2026-03-10T05:25:17.430Z","response_time":106,"last_error":"SSL_read: unexpected eof while reading","robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":false,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":[],"created_at":"2024-11-15T17:33:55.921Z","updated_at":"2026-03-10T05:31:00.198Z","avatar_url":"https://github.com/Exios66.png","language":"HTML","funding_links":[],"categories":[],"sub_categories":[],"readme":"# Cronbach-Alpha\n\n ## RUST - Psychometrics\n\n### Overview\n\nCronbach's Alpha is one of the most widely used measures of reliability in psychometric assessment and research. This implementation provides a robust and efficient way to calculate the coefficient using Rust's performance capabilities.\n\n## Features\n\n- Fast and efficient Cronbach's Alpha calculation\n- Support for multiple data formats\n- Handles missing values\n- Statistical validation checks\n- Clear error handling and reporting\n\n## Installation\n\nAdd this to your `Cargo.toml`:\n\n```toml\n[dependencies]\ncronbach-alpha = \"0.1.0\"\n```\n\n## Usage\n\n```rust\nuse cronbach_alpha::calculate_alpha;\n\nfn main() {\n    // Example data matrix (items x participants)\n    let data = vec![\n        vec![5, 4, 3, 2],\n        vec![4, 3, 2, 1],\n        vec![5, 4, 3, 2],\n    ];\n\n    match calculate_alpha(\u0026data) {\n        Ok(alpha) =\u003e println!(\"Cronbach's Alpha: {:.3}\", alpha),\n        Err(e) =\u003e eprintln!(\"Error: {}\", e),\n    }\n}\n```\n\n## Mathematical Background\n\nCronbach's Alpha (α) is calculated using the formula:\n\nα = (k / (k-1)) * (1 - Σσᵢ² / σₜ²)\n\nWhere:\n\n- k is the number of items\n- σᵢ² is the variance of each item\n- σₜ² is the variance of the total score\n\n## Requirements\n\n- Rust 1.56.0 or higher\n- Standard statistical libraries\n\n## Contributing\n\nContributions are welcome! Please feel free to submit a Pull Request. For major changes, please open an issue first to discuss what you would like to change.\n\n1. Fork the Project\n2. Create your Feature Branch (`git checkout -b feature/AmazingFeature`)\n3. Commit your Changes (`git commit -m 'Add some AmazingFeature'`)\n4. Push to the Branch (`git push origin feature/AmazingFeature`)\n5. Open a Pull Request\n\n## License\n\nThis project is licensed under the MIT License - see the [LICENSE](LICENSE) file for details.\n\n## References\n\n- Cronbach, L. J. (1951). Coefficient alpha and the internal structure of tests. Psychometrika, 16(3), 297-334.\n\n- Guidelines for reporting reliability and internal consistency statistics in psychological research\n\n## Author\n\nJack J. Burleson\n\n## Acknowledgments\n\n- The Rust community\n- Contributors to psychometric research\n\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fexios66%2Fcronbach-alpha","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fexios66%2Fcronbach-alpha","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fexios66%2Fcronbach-alpha/lists"}