AbstrakBeberapa area dari pemecahan masalah matematika berhubungan dengan kemampuan visuospatial. Adanya konseptualisasi spasial yang baik merupakan asset untuk memahami konsep-konsep matematika. Pada kemampuan spasial diperlukan adanya pemahaman perspektif, bentuk-bentuk geometris, menghubungkan konsep visual. Faktorfaktor tersebut juga diperlukan dalam prestasi belajar matematika. Penelitian ini bertujuan menguji ada tidaknya hubungan antara kemampuan spasial dengan prestasi belajar matematika.Pengumpulan data dilakukan terhadap 220 anak usia sekolah, berusia 7-11 tahun dengan memberikan tes kemampuan spasial yang terdiri dari hubungan spasial topologi, proyektif, euclidis dan tes matematika. Hasil menunjukkan bahwa terdapat hubungan antara kemampuan spasial total, topologi dan euclidis dengan prestasi belajar matematika, tetapi tidak terdapat hubungan antara kemampuan spasial proyektif dengan prestasi belajar matematika. AbstractA number of the mathematical problem solving are related with visuospatial ability. A good spatial conceptualization is an asset to understand the mathematical concept. Perspective understanding, geometrical shapes, and visual concept relation are crucial skills in spatial ability. These factors are also needed in mathematical performance. This research is intended to test the relationship between spatial abilities and mathematical performance. Data are collected from 220 children (7 to 11 years old) by giving them the spatial ability test which consists of spatial topology, projective, euclidis, and mathematical test. Result shows that there is a significant relationship between total spatial ability, topology, euclidis and mathematical performance. In the contrary, it shows that there is no relationship between projective spatial ability and mathematical performance.

Abstract. The purpose of this research is to test the effects of social support and online trust behavior on the adherence in 212 middle-aged m-Health users in Indonesia. The data was obtained incidentally by distributing questionnaires to middle-aged m-Health users in Indonesia. The measuring instruments used are social support, online trust behavior, and the Health Care Climate Questionnaire (HCCQ). The survey method is analyzed using Structural Equation Modeling (SEM) with the Linear Structural Relations (LISREL) program version 8.7. The results show a direct effect between social support and the adherence of middle-aged m-Health users, a direct effect of online trust behavior on the adherence of middle-aged m-Health users, and an indirect effect of  social support on adherence mediated by online trust behavior in middle-aged m-Health users. The discussion of the results is described in the article.

In this article, a meta-analysis study is presented which aims to see how the correlation is obtained through the variables of self-esteem and self-presentation. The stages in analyzing the correlation of this data are carried out using meta-analysis techniques through 2 types of artifacts, namely measurement error correction and sampling error correction. Based on the analysis of 10 scientific studies, it was found that the range of empirical research published between 2009 and 2020 with a total sample size of N=4,654. From the results of the meta analysis conducted, it shows that self-esteem is positively correlated with self-presentation.