The Effectiveness of the "Real-Life-Based School Dictionary" as an Electronic Dictionary

The Real-Life-Based School Dictionary (GYTOS) is designed to include the general vocabulary, terms, collocations, idioms, proverbs, synonyms and antonyms of Turkish for primary and secondary school students who are the target audience with monolingual, virtual and code generation and decoding functions. The corpus linguistics method was used in the creation phase of the dictionary and all lemmas were identified and structured on a real-life basis through the created corpus (https://okulsozlugum.com/). The aim of the study was to determine the effect of GYTOS on the vocabulary development of primary and secondary school students. For this purpose, the students' level of experience in using the dictionary was first determined. Then, an achievement test was administered to students who used the dictionary and students who did not use the dictionary to statistically determine the effect of GYTOS on students' vocabulary development. In the study, a 13-question questionnaire was used to determine students' experience of using GYTOS and it was found that they found GYTOS to be highly adequate. Furthermore, students stated that GYTOS was an easy-to-use and accessible resource. As a result of the achievement test, it was found that the scores of two different groups of students at the same level and with the same number of users of GYTOS from the same achievement test showed a statistically significant difference. Keywords: Real-Life-Based School Dictionary, effectiveness, school dictionary, language skills