Internal consistency in achievement tests: role of Cronbach’s alpha and Guttman pattern
NORMURODOV ASROR BAZAROVICH va boshqalar , Axborotnoma, 4-33, (2025), №3, 23.12.2025

Qisqacha mazmuni. This paper explores the significance of Cronbach's alpha in evaluating the internal consistency and reliability of test scores, particularly in educational assessments. Through a comprehensive analysis, we highlight how closely the response matrix of test results aligns with the Guttman pattern, emphasizing the importance of the number of items when making inferences using Cronbach's alpha. We conducted a field test with 423 students to evaluate a newly developed biology assessment tool, ensuring the reliability and validity of the test through robust statistical methods. The study presents a detailed examination of the Guttman pattern, its implications for test analysis, and the interpretation of Cronbach's alpha in different test scenarios. We also compare the descriptive statistics and reliability measures of simulated data sets with normal distribution and actual test data, providing insights into the practical applications and limitations of Cronbach's alpha in real-world settings. The findings underscore the importance of careful item selection and test design to enhance the reliability and interpretability of educational assessments

HUQUQSHUNOSLIK FANIDAN O‘TKAZILGAN TEST SINOVI NATIJALARI TAHLILI
Sattiyev Abdulaziz Rasuljonovich va boshqalar , Axborotnoma, 34-73, (2025), №3, 23.12.2025

Qisqacha mazmuni. Ushbu maqolada huquqshunoslik fanidan (oʻzbek va rus tili guruhlari uchun) 2025-2026 - o‘quv yilida bakalavriatga kirish test sinovlari natijalarining klassik test nazariyasi asosida olingan statistik ko‘rsatkichlari - o‘rtacha qiymati, mediana, moda, o‘lchashning standart xatoligi va distraktorlari o‘rganilgan. Tahlil orqali test sinovlarida foydalanilgan test topshiriqlarining distraktorlari samarali ishlayotganligi aniqlandi.

Test ma’lumoti va xarakteristikasi chiziqlarini Rash va ikki parametrli modellar orqali taqqoslash
NORMURODOV ASROR BAZAROVICH va boshqalar , Axborotnoma, 74-87, (2025), №3, 23.12.2025

Qisqacha mazmuni. Ushbu maqolada ilmiy tadqiqot uchun biologiya fanidan o‘tkazilgan test sinovi natijalari asosida test ma’lumoti va xarateristikasi chiziqlari Rash modeli va ikki parametrli modellar bilan tahlil qilindi. Tadqiqotda har ikki model bo‘yicha testning qobiliyat darajasiga ko‘ra ma’lumot funksiyalari taqqoslandi. Natijalar orqali testning validligi va ishonchliligini oshirishda model tanlashning ahamiyati ko‘rsatildi. Ikki parametrli model bo‘yicha hisoblangan test ma’lumot chiziqlari yuqori qobiliyatlar uchun ko‘proq ma’lumot berishi ko‘rsatildi.

FIZIKA FANINING OPTIKA BO‘LIMINI O‘QITISHDA TALABALARNING BILIM VA MALAKALARINI BAHOLASH MEXANIZMI
QODIROVA XAMIDAXON NURMUXAMADOVNA , Axborotnoma, 88-96, (2025), №3, 23.12.2025

Qisqacha mazmuni. Ushbu maqolada fizika fanining optika bo‘limini o‘qitish jarayonida talabalarning bilim va ko‘nikmalarini baholashning zamonaviy usullari va mezonlari tahlil qilingan. Test, laboratoriya ishi va portfolio asosida baholash usullari yoritilgan. Shuningdek, ta’lim sifatini oshirishda diagnostika va refleksiyaning o‘rni ham ko‘rsatilgan. Talabalarda optіkanі іnnovatsіon yondashuv asosіda o‘zlashtіrіsh darajasіnі baholash mezonlarі va shakllanganlik darajalari ko‘rib chiqilgan.