MultiScent-20 Data - Binary responses (correct vs. incorrect answers) data from full sample, for each odour

Data used for IRT analysis in the article "The Multiscent-20: A Digital Odour Identification Test Developed with Item Response Theory", with the following authors: Marcio Nakanishi 1, *, Pedro Renato de Paula Brandão 2, *, Gustavo Subtil Magalhães Freire 1 , Luis Gustavo do Amaral Vinha 3 , Marco Aurélio Fornazieri 4 , Wilma Terezinha Anselmo Lima 5 , Claudia Galvão 6 , Thomas Hummel 7 1 Department of Otorhinolaryngology, University Hospital of Brasília, University of Brasília, Brasília, DF, Brazil 2 Neurology Department, Hospital Sírio-Libanês, Brasília, DF, Brazil 3 Statistics Department, University of Brasília, DF, Brazil 4 State University of Londrina, Pontifical Catholic University of Paraná 5 Department of Ophthalmology and Otorhinolaryngology, Ribeirão Preto Medical School-University of São Paulo, Brazil 6 NOAR Brasil Ltda, São Paulo-SP, Brazil 7 Smell and Taste Clinic, Department of Otorhinolaryngology, Technical University of Dresden, Dresden, Germany MultiScent-20 descrition: The Multiscent-20 is a portable tablet computer with an integrated hardware system consisting of a central processing unit, touchscreen, Wi-Fi antenna, USB dock, power supply, and rechargeable battery. Additionally, it contains an odour system composed of 20 microcartridges, an air filter, a system that generates a dry air stream, and an odour-dispensing opening. The device is capable of presenting 20 different odours from individual odour capsules, which store the olfactory stimuli by incorporating the odours into an oil-resistant polymer. The capsules are loaded through an insertion port on the back of the device. A software-controlled processing unit governs the flow of dry air, generating a constant air stream that passes through the capsule, releasing individual odours through a small opening at the upper front of the device. In this study, each scent was presented for 5 seconds, with an interval of at least 6 seconds between odour presentations. Each capsule contained 35 µL of oil-based odour solution, allowing the device to maintain consistent odour intensity and identifiability for up to 100 activations, as per the manufacturer's instructions. The Givaudan Flavours and Fragrance Corporation (São Paulo, Brazil) prepared the odours used in the capsules. A digital application (software) was developed to present odours and record olfactory function test results. The device delivers odours through a dry air system, leaving no residue in the environment or on users. Users can access the test using an application on the device (screen version) or mobile phone. The results are accessible through the integrated software, allowing for storage and analysis of the data.