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ERIC Number: EJ918757
Record Type: Journal
Publication Date: 2011-Aug
Pages: 11
Abstractor: As Provided
ISSN: ISSN-0360-1315
Reliability and Validity of Web-Based Portfolio Peer Assessment: A Case Study for a Senior High School's Students Taking Computer Course
Chang, Chi-Cheng; Tseng, Kuo-Hung; Chou, Pao-Nan; Chen, Yi-Hui
Computers & Education, v57 n1 p1306-1316 Aug 2011
This study examined the reliability and validity of Web-based portfolio peer assessment. Participants were 72 second-grade students from a senior high school taking a computer course. The results indicated that: 1) there was a lack of consistency across various student raters on a portfolio, or inter-rater reliability; 2) two-thirds of the raters demonstrated inconsistency assessing different portfolios, i.e. inner-rater reliability; 3) peer-assessment scores were not consistent with teacher-assessment scores (criterion-related validity); 4) significant differences were found between peer-assessment scores and end-of-course examination scores, implying that Web-based portfolio peer assessment failed to reflect learning achievements (criterion-related validity). In short, Web-based portfolio peer assessment was not a reliable and valid method.
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Publication Type: Journal Articles; Reports - Evaluative
Education Level: Elementary Secondary Education; High Schools; Secondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A