This study intends to identify the minimal number of repetitions needed for successful incidental learning of legal vocabulary after watching authentic videos as a leisure time activity. It also examines the effectiveness of long-term exposure to authentic videos for incidental learning of legal vocabulary. For this purpose, the participants were distributed between two groups: the incidental and the control one. The incidental group had to watch 5 hours of authentic TV documentary Forensic Files. Fourteen target legal words had from 4 to 46 repetitions in the videos. The post-tests measured incidental learning of two aspects of the target words: form recognition and meaning recall. The overall results revealed that watching five hours of authentic videos leads to incidental learning of legal vocabulary. The results of the form recognition post-test suggest that the possible minimal number of repetitions for successful incidental learning of this aspect of the legal words may lie around 14 repetitions. No definite conclusion could be drawn about the minimal number of repetitions necessary for successful recall of the meanings of the target words.

中文翻译：

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通过长期暴露于真实视频中，重复对偶然的法律词汇学习的影响

这项研究旨在确定在观看真实视频作为休闲活动之后，成功偶然学习法律词汇所需的最少重复次数。它还检查了长期接触真实视频对于偶然学习法律词汇的有效性。为此，参与者被分为两组：偶然的和对照组。偶然的小组不得不看了5个小时的真实电视纪录片取证文件。视频中有14个目标合法词有4到46个重复。测验测试了目标词在两个方面的偶然学习：形式识别和意义记忆。总体结果显示，观看五个小时的真实视频会导致偶然学习法律词汇。测试后的形式识别结果表明，成功偶然学习法律字词这方面的最小重复次数可能约为14次重复。对于成功回忆目标词的含义所需的最少重复次数，无法得出明确的结论。