【单选题】【消耗次数：1】
随着行为或事件的发生，观察者详细地作观察记录，然后对观察资料加以分类，进行分析研究，这种科研方法称为：（)
①
时间取样观察法
②
事件取样观察法
③
观察评定
④
叙述性观察法
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相关题目
【单选题】
观察法的类型包括：直接观察与间接观察；参与性观察与非参与性观察；有结构观察和无结构观察：全面观察与抽样观察；（ ）。
①
定期观察与不定期观察
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定期观察与追踪观察
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程序观察与非程序性观察
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灵活观察与固定观察
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