Despite their many benefits, longitudinal studies are much less common than one-time data collection or pre-post intervention designs. One reason for their scarcity is that longitudinal studies int...

中文翻译：

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五年后：纵向混合方法研究的教训和见解

尽管纵向研究有很多好处，但它比一次性数据收集或前后干预设计要少得多。它们稀缺的原因之一是纵向研究...