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Is 20 participants in learning web development sufficient? 


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Based on the research findings, the adequacy of 20 participants in learning web development can vary depending on the specific usability evaluation method employed. While there is no fixed number of participants to identify all usability issues, the rule of 16 users is considered valid in user testing . In contrast, three evaluators are adequate to uncover 91% of usability problems in the Domain Specific-to-context Inspection (DSI) method . Additionally, a study introducing a system that learns participants of given scripts outperformed baselines, showcasing the significance of participant selection in web experiments . Therefore, when considering the effectiveness of participant numbers in web development learning, it is essential to account for the specific evaluation method and the nature of the study to ensure comprehensive insights and reliable outcomes.

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Proceedings ArticleDOI
Roobaea Alroobaea, Pam J. Mayhew 
09 Oct 2014
92 Citations
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H. Karris, H.J. Arisz 
01 Jul 2000
10 Citations
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01 Sep 2011
18 Citations
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