Finding the experts in the crowd: Validity and reliability of crowdsourced measures of children's gradient speech contrasts.

This study aims to measure the validity and reliability of crowdsourced continuous ratings of child speech, obtained through Visual Analog Scaling, and to identify ways to improve these measurements. We first assess overall validity and interrater reliability for measurements obtained from a large set of raters. Second, we investigate two rater-level measures of quality, individual validity and intrarater reliability, and examine the relationship between them. Third, we show that these estimates may be used to establish guidelines for the inclusion of raters, thus impacting the quality of results obtained when smaller samples are used. PMID: 27267258 [PubMed - as supplied by publisher]
Source: Clinical Linguistics and Phonetics - Category: Speech Therapy Authors: Tags: Clin Linguist Phon Source Type: research

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