Missing data is a common problem in datasets that are obtained by administration of educational and psychological tests. It is widely known that existence of missing observations in data can lead to serious problems such as biased parameter estimates and inflation of standard errors. Most of the missing data imputation methods are focused on…

The present study is a follow-up study of Çakir (2016b) which focused on the wh-adverbial & which NP constructions asymmetry within island structures in Turkish. The characteristics of wh-adverbial nasil "how" is compared with the which-NP constructions "hangisekilde" "in what way" and "hangihalde"…

Reading comprehension is based on the efficient accomplishment of several cognitive processes at the word, sentence, and text level. To the extent that each of these processes contributes to reading comprehension, it can cause reading difficulties if it is deficient. To identify individual sources of reading difficulties, tools are required that…

This study had two aims. The first was to explain the process of using the Rasch measurement model to validate tests in an easy-to-understand way for those unfamiliar with the Rasch measurement model. The second was to validate two final exams with several shared items. The exams were given to two groups of students with slightly differing English…

Learning whether English nouns are countable or not is a source of great difficulty for many ESL/EFL learners. In the present study, a grammaticality judgement task comprised of a range of nouns representative of the different facets of the countability system in English was distributed to 82 native speakers of English (NSs) and 98 non-native…

This study assessed unidimensionality and occurrence of Differential Item Functioning (DIF) in Mathematics and English Language items of Osun State Qualifying Examination. The study made use of secondary data. The results showed that OSQ Mathematics (-0.094 = r = 0.236) and English Language items (-0.095 = r = 0.228) were unidimensional. Also,…

This study investigates the psychological effect of a wrong question with wrong items on answering to the next question in a test of structure. Forty students selected through stratified random sampling are given 15 questions of a standardized test namely a TOEFL structure test in which questions number 7 and number 11 are wrong and their answers…

This study investigates test-takers' processing while completing banked gap-fill tasks, designed to test reading proficiency, in order to test theoretically based expectations about the variation in cognitive processes of test-takers across levels of performance. Twenty-eight test-takers' eye traces on 24 banked gap-fill items (on six tasks) were…

Researchers are frequently confronted with unanswered questions or items on their questionnaires and tests, due to factors such as item difficulty, lack of testing time, or participant distraction. This paper first presents results from a poll confirming previous claims (Rietveld & van Hout, 2006; Schafer & Graham, 2002) that data…

The research reported in this article investigates differential item functioning (DIF) in a listening comprehension test. The study explores the relationship between test-taker age and the items' language domains across multiple test forms. The data comprise test-taker responses (N = 2,861) to a total of 133 unique items, 46 items of which were…

Reliability and differential item functioning (DIF) analyses were conducted on testlets displaying local item dependence in this study. The data set employed in the research was obtained from the answers given by 1,500 students to the 20 items included in six testlets given in English Proficiency Exam by the School of Foreign Languages of a state…

To date, research into vocabulary learning strategies has mainly made use of questionnaires about studying preferences in general or of interviews following a specific study task, focusing on finding out which strategies were most popular. The present investigation attempts to provide more insight into the effects of the parameters of timing and…

The present study focused on the analysis of listening sections of two international English proficiency tests, i.e. IELTS and TOEFL tests, and one local English proficiency test, i.e. TOLIMO from pragmatic perspective. An attempt was made to explore the areas of pragmatic knowledge presented, and to assess test takers' pragmatic knowledge. For…

Within the scope of educational testing and assessment, setting standards and creating guidelines as a code of practice provide more prolific and sustainable outcomes. In this sense, internationally accepted and regionally accredited principles are suggested for standardization in language testing and assessment practices. Herein, ILTA guidelines…

The scores from vocabulary size tests have typically been interpreted as demonstrating that the target words are "known" or "learned." But "knowing" a word should entail the ability to use it in real language communication in one or more of the four skills. It should also entail deeper knowledge, such as knowing the…