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Direct linkChia-Ying Chu; Pei-Hua Chen; Yi-Shin Tsai; Chieh-An Chen; Yi-Chih Chan; Yan-Jhe Ciou – Journal of Deaf Studies and Deaf Education, 2024
This study investigated the impact of language sample length on mean length of utterance (MLU) and aimed to determine the minimum number of utterances required for a reliable MLU. Conversations were collected from Mandarin-speaking, hard-of-hearing and typical-hearing children aged 16-81 months. The MLUs were calculated using sample sizes ranging…
Descriptors: Foreign Countries, Mandarin Chinese, Young Children, Language Acquisition
Download full textBenton, Tom – Research Matters, 2021
Computer adaptive testing is intended to make assessment more reliable by tailoring the difficulty of the questions a student has to answer to their level of ability. Most commonly, this benefit is used to justify the length of tests being shortened whilst retaining the reliability of a longer, non-adaptive test. Improvements due to adaptive…
Descriptors: Risk, Item Response Theory, Computer Assisted Testing, Difficulty Level
Galikyan, Irena; Madyarov, Irshat; Gasparyan, Rubina – ETS Research Report Series, 2019
The broad range of English language teaching and learning contexts present in the world today necessitates high quality assessment instruments that can provide reliable and meaningful information about learners' English proficiency levels to relevant stakeholders. The "TOEFL Junior"® tests were recently introduced by Educational Testing…
Descriptors: English (Second Language), Language Tests, Second Language Learning, Student Attitudes
Seong, Tae-Je; And Others – 1997
This study was designed to compare the accuracy of three commonly used ability estimation procedures under the graded response model. The three methods, maximum likelihood (ML), expected a posteriori (EAP), and maximum a posteriori (MAP), were compared using a recovery study design for two sample sizes, two underlying ability distributions, and…
Descriptors: Ability, Comparative Analysis, Difficulty Level, Estimation (Mathematics)
Catts, Ralph – 1978
The reliability of multiple choice tests--containing different numbers of response options--was investigated for 260 students enrolled in technical college economics courses. Four test forms, constructed from previously used four-option items, were administered, consisting of (1) 60 two-option items--two distractors randomly discarded; (2) 40…
Descriptors: Answer Sheets, Difficulty Level, Foreign Countries, Higher Education
de Jong, John H. A. L. – 1984
The Netherlands' secondary education system is highly differentiated, with four different school types for four scholastic ability levels. Final examinations must accommodate these four levels, and require a test-independent definition of the intended final ability levels as well as a sample-free evaluation of the range of ability levels at which…
Descriptors: Difficulty Level, Efficiency, Equated Scores, Foreign Countries
