An assessment of public knowledge about HIV/AIDS is necessary for the development of educational strategies and materials. A valid and reliable instrument is needed to obtain comparable assessment of public knowledge about HIV/AIDS from time to time. This research study aims to determine the validity and reliability of the Indonesian version of HIV-KQ-18 in assessing public knowledge about HIV/AIDS in the Special Region of Yogyakarta. This research study used a crosssectional design with the inclusion criteria being people living in Yogyakarta who were at least 18 years old and the exclusion criteria being respondents who did not fill out the instrument completely and did not fill out duplicate forms from the same respondent. The instrument was analyzed using product-moment correlation and knowngroup validity, while its reliability was tested using Kuder-Richardson Formula 20 (KR20). The total number of respondents as the subjects in this research study was 305. The results of the validity test of the HIV-KQ-18 obtained an r-xy value from 0.177-.564, greater than r-table (0.112), and the HIV-KQ-18 instrument exhibited high reliability with a KR20 value of 0.763. The test of known-groups validity showed that there were significant differences in all groups tested, except for the group based on age. The HIV-KQ-18 is a valid and reliable instrument and it can be used to assess public knowledge about HIV/AIDS in the Special Region of Yogyakarta.This is an open access article under the CC-BY-SA license.

Until presently, tuberculosis has been a burden to Indonesia, placing the country third among countries with the heaviest tuberculosis burden in the world. Tuberculosis treatment takes a long period and may cause side effects. Therefore, it requires sufficient tuberculosis knowledge on the patients' part for the patients to know of the side effects of anti-tuberculosis and how to deal with them. This research aimed to obtain a short questionnaire of tuberculosis patients' knowledge about anti-tuberculosis and hepatotoxicity (SQ-KSH-TB) which determines patients' knowledge of antituberculosis side effects and how to handle them. This research employed a cross-sectional design and involved 17 public health services (puskesmas) and three hospitals in Yogyakarta Province. The inclusion criteria were patients diagnosed with pulmonary tuberculosis and being in a tuberculosis treatment period with a public health service or a pulmonary hospital in Yogyakarta Province. The exclusion criteria were the patients passing away, having completed a six months treatment or having been receiving treatment for over six months, and being unwilling to cooperate in the research. The questionnaire used in this research was a questionnaire that was developed based on prior research work, containing eight questions on a Guttman scale. Validity and reliability analyses were carried out with Pearson's product-moment correlation and the Kuder-Richardson-20 test, respectively. As many as 194 subjects enrolled in this research. The eight questions in the questionnaire had r count values greater than the r table, hence meeting the validity criterion. Meanwhile, the KR-20 value obtained was 0.721, indicating a good level of reliability. The SQ-KSH-TB was able to meet the validity and reliability criteria, showing applicability in the Indonesian context.