Improving self-efficacy in the learning process of Mathematics is very important as the key to success in learning Mathematics. Self-efficacy in learning mathematics is a belief in one's ability to solve mathematical problems. Many studies have been conducted on the relationship between self-efficacy and students' mathematics learning ability in Indonesia. However, there are different representations or conclusions regarding the results of this study. Therefore, this study aims to examine the relationship of self-efficacy to students' mathematics learning ability in Indonesia using a meta-analysis approach. This study analyzed 40 research publications in national and international journals that were screened with certain eligibility criteria. The effect size in this study was determined by an acceptable 95% confidence level. To support the accuracy of the calculations used JASP software. The results of the study found that the effect size value generated by using the random-effect model estimation in the research analyzed was (M* = 0.65) with the lower limit of the confidence interval (LLM* = 0.51) and the upper limit of the confidence interval (ULM* = 0.80). This correlation measure is included in the strong category. These findings indicate that there is a positive and significant relationship between self-efficacy and students' mathematics learning ability in Indonesia. This means that the higher the self-efficacy, the higher the mathematical ability, and the lower the self-efficacy, the lower the mathematical ability. These findings will provide a solid theoretical foundation to improve students' mathematical achievement in the future.

Many studies have been conducted on the differences in the effectiveness of the flipped classroom model compared to traditional learning models on mathematics learning achievement. However, the results of previous studies have inconsistent results. Therefore, this study aims to test the effectiveness of the flipped classroom model on mathematics learning achievement when compared to traditional learning models. For this purpose, the study design used was a contrast group metaanalysis. The studies analyzed were 20 independent studies from 13 main studies published in Scopus-indexed journals. Data analysis using JASP software version 0.16.4. The results of the analysis showed that the combined effect size using random effect estimation was (Cohen'd = 0.494; p < 0.001). This effect size belongs to the medium effect category. These results prove that students' mathematics learning achievement using the flipped classroom model is more effective than the traditional learning model. The results of this study suggest that the difference in size from the previous study became clear after the meta-analysis, namely the moderate effect category. These results are also expected to be the basis for policymaking in improving the quality of mathematics learning.

Penelitian inii dilatarbelakangii oleh faktor-faktors yang mempengaruhii prestasi belajar mahasiswa di masa pandemi covid, yaitu faktor5 internal dan faktorr eksternal. prestasi belajarr yang baik akan dapat dicapaii apabila mahasiswa dapat mengatasi kkesulitan belajar yang ddialaminya, namunn ada sejumlah variabell yang saling mmempengaruhinya. Penelitianu ini bertujuan untuk mengetahuii gambarann dan ppengaruh efikasi diri dan aktivitas belajar prestasi belajar matematika kemandirian belajar pada Mahasiswa Prodi Pendidikan Matematikaa IAIN Ambon. Jenis ppenelitian iini adalah ex-post facto yang bersifat kausalitas. Sampel dalam penelitian ini adalah mahasiswa Prodi pendidikan matematika IAIN Ambon tahun akademik 2020/2021 yang diambil dengan menggunakan Disproporsional stratified cluster random sampling. Instrumen yang digunakan: (1) efikasi diri, (2) skala aktivitas belajar, (3) skala kemandirian belajar,(4) IPK. Data ddianalisis menggunakan statistikk deskriptifs dan data diolah secara kuantitatif dengan menggiunakan analisiss jalur (path anlysis). Hasill penelitian menunjukann bahwa: (1) Sebagian besar Mahasiswaa Programs Studii Pendidikan matematika IAIN Ambon memiliki: efikasi diri dengan kategori sedang, aktivitas belajar dengan kategorii sedang, kemandirian belajar dengann kategoriy sedang, prestasi bbelajar berkategoris sedang; (2) efikasis diri berpengaruhh positiff terhadap prestasi belajars matematikas baik secara langsungs maupun tidak langsung5 melalui kemandirian belajar; (3) aktivitas belajar berpengaruh positif terhadap prestasi belajar matematika baik secara langsung maupun tidak langsung melalui kemandirian belajar.