並前往https://researcher20.com/2009/03/28/%E5%A6%82%E4%BD%95%E5%88%86%E6%9E%90%E5%89%8D%E3%80%81%E5%BE%8C%E6%B8%AC-%E9%80%B2%E6%AD%A5%E5%88%86%E6%95%B8analysis-of-pre-test-post-test-gain-scores/