Analysis Of Test Data Research Articles

Probabilistic stimulation mapping from intra-operative thalamic deep brain stimulation data in essential tremor

Deep brain stimulation (DBS) is a therapy for Parkinson’s disease (PD) and essential tremor (ET). The mechanism of action of DBS is still incompletely understood. Retrospective group analysis of intra-operative data recorded from ET patients implanted in the ventral intermediate nucleus of the thalamus (Vim) is rare. Intra-operative stimulation tests generate rich data and their use in group analysis has not yet been explored. Objective. To implement, evaluate, and apply a group analysis workflow to generate probabilistic stimulation maps (PSMs) using intra-operative stimulation data from ET patients implanted in Vim. Approach. A group-specific anatomical template was constructed based on the magnetic resonance imaging scans of 6 ET patients and 13 PD patients. Intra-operative test data (total: n = 1821) from the 6 ET patients was analyzed: patient-specific electric field simulations together with tremor assessments obtained by a wrist-based acceleration sensor were transferred to this template. Occurrence and weighted mean maps were generated. Voxels associated with symptomatic response were identified through a linear mixed model approach to form a PSM. Improvements predicted by the PSM were compared to those clinically assessed. Finally, the PSM clusters were compared to those obtained in a multicenter study using data from chronic stimulation effects in ET. Main results. Regions responsible for improvement identified on the PSM were in the posterior sub-thalamic area (PSA) and at the border between the Vim and ventro-oral nucleus of the thalamus (VO). The comparison with literature revealed a center-to-center distance of less than 5 mm and an overlap score (Dice) of 0.4 between the significant clusters. Our workflow and intra-operative test data from 6 ET-Vim patients identified effective stimulation areas in PSA and around Vim and VO, affirming existing medical literature. Significance. This study supports the potential of probabilistic analysis of intra-operative stimulation test data to reveal DBS’s action mechanisms and to assist surgical planning.

Mechanical properties of geopolymer concrete specimens exposed to fire retrofitted with glass and basalt fiber reinforced polymer laminates

AbstractExposure of concrete to elevated temperature affects its mechanical and physical properties. One of the important reasons for the use of fiber‐reinforced polymer (FRP) composite materials is because of its superior mechanical properties. These mechanical properties include impact resistance, strength, stiffness, flexibility, and also it is enhanced ability to carry loads. The high strength–weight ratio, and corrosion resistance of FRPs made them suitable for repair. For strengthening and retrofitting of concrete structures confinement with FRP has received considerable attention in recent years. Geopolymer concrete (GPC) can be expressed as “concrete without cement.” GPC is environmentally friendly and an inventive way to replace the conservative concrete which contributes 7%–8% of total CO2 production in the world. “The concrete which entails of the source materials and the alkaline solution.” The composite material made of fiber‐reinforced polymer (FRP) has recently gained attention as a potential repair method for concrete structures that have been damaged. This study investigates the performance of glass and basalt fiber‐reinforced polymer (GFRP and BFRP) laminates as a retrofit solution for fire‐damaged GPC specimens. The specimens were subjected to temperatures of 200°C, 400°C, 600°C, and 800°C for a period of 1, 2, and 3 h, followed by retrofitting with FRP laminates. The results indicated an increase in the ultimate load‐carrying capacity of GPC specimens when subjected to 200°C for 1 h, beyond which it decreased. However, a fall in ultimate load capacity was observed for higher ranges of temperature and duration of the fire. In this project, geopolymer specimens that had been damaged by fire are wrapped with GFRP and BFRP laminates to study the effect of confinement on the strength of GPC specimens. The fiber laminate used was bi‐directional glass and bi‐directional basalt. Based on the analysis of test data, there was the conclusion that the fire‐damaged GPC was strengthened when retrofitted with GFRP and BFRP laminates was attainable.

Certification of Meissen Granite IAG GMN‐1 Using the GeoPT Proficiency Testing Certification Protocol

Following a full assessment of the GeoPT proficiency testing scheme against the recommendations in ISO Guide 35:2017 for the use of proficiency testing in the certification of reference materials, this paper presents the first application of the GeoPT certification protocol in the characterisation of a new geochemical CRM, IAG GMN‐1, Meissen Granite. This protocol is applied to the measurement results reported in Round 51 of the GeoPT programme in which the candidate CRM was used as the test material, together with an established CRM (CGL 008 MGT‐1 Granite) to provide validation of the results. Following the presentation of mineralogy, grain‐size analysis and homogeneity testing data for IAG GMN‐1, certified values for nine major elements and thirty‐nine trace elements are reported.

Pengaruh Model Pembelajaran Kooperatif Tipe Group Investigation terhadap Hasil Belajar PPKn Kelas 3 di MI Ikhwanul Muslimin

Student PPKn learning outcomes are still unsatisfactory, causing students' low understanding of the material, thus affecting student learning outcomes who have not reached the Minimum Completeness Criteria (KKM) score. This research aims to determine the effect of implementing the group investigation type cooperative learning model to answer existing problems in the field. The research method used is an experimental research method. The research results show that: (1) Student learning outcomes before using the Group Investigation Cooperative Learning Model show that the average learning outcomes for experimental class students is 65.6 and the control class is 74.8. These results show that the average learning outcome for the experimental class is still below the KKM, namely 68; (2) Student Learning Results after using the Group Investigation Type Cooperative Learning Model, in this discussion the results of data analysis for the final test (posttest) between the experimental and control groups show different average values. This shows that the average learning outcome for experimental class students is 70.4 and the control class is 77.6. These results show that the two classes got an average learning outcome above the KKM, namely 68; (3) The influence of the Group Investigation type cooperative learning model on student learning outcomes. In the application of the group investigation type cooperative learning model, it can be concluded that the results of the pretest for class III A students (experiment) got a value below the average, namely 65.6, while the KKM in terms of Civics learning at school is 68. After being treated with the group investigation type cooperative learning model in this class, it can be seen that there has been an increase in learning outcomes up to 70.4. So we get a difference of 4.8.

Effect of body mass index on exercise capacity following pediatric heart transplantation.

Obesity and impaired exercise tolerance following heart transplantation increase the risk of post-transplant morbidity and mortality. The aim of this study was to evaluate the effect of body mass index on markers of exercise capacity in pediatric heart transplant recipients and compare this effect with a healthy pediatric cohort. A retrospective analysis of cardiopulmonary exercise test data between 2004 and 2022 was performed. All patients exercised on a treadmill using the Bruce protocol. Inclusion criteria included patients aged 6-21 years, history of heart transplantation (transplant cohort) or no cardiac diagnosis (control cohort) at the time of testing, and a maximal effort test. Patients were further stratified within these two cohorts as underweight, normal, overweight, and obese based on body mass index groups. Two-way analyses of variance were performed with diagnosis and body mass index category as the independent variables. A total of 250 exercise tests following heart transplant and 1963 exercise tests of healthy patients were included. Heart transplant patients across all body mass index groups had higher resting heart rate and lower maximal heart rate, heart rate recovery at 1 min, exercise duration, and peak aerobic capacity (VO2peak). Heart transplant patients in the normal and overweight body mass index categories had higher VO2peak and exercise duration when compared to underweight and obese patients. Underweight status and obesity are strongly associated with lower VO2peak and exercise duration in heart transplant patients. Normal and overweight heart transplant patients had the best markers of exercise capacity.

Cellpy – an open-source library for processing and analysis of battery testing data

Cellpy – an open-source library for processing and analysis of battery testing data

Webquest Sebagai Pembelajaran Dimasa Pandemi Covid-19 Pada Mata Pelajaran Sejarah Indonesia Kelas X Di Smk Nurul Huda Poncokusumo Kabupaten Malang

The pandemic disease outbreak due to corona virus disease (Covid-19) has affected learning activities at both elementary and tertiary levels. The government requires students to carry out online learning activities. One online learning alternative that can be implemented is WebQuest. WebQuest is a type of web-based learning that is inquiry-oriented. In developing this WebQuest, the model used is Web-Based Instructional Design with four stages: 1) Analysis Stage, 2) Concurrent Design Stage, 3) Implementation Stage, 4) Evaluation Stage. This research was applied to 40 students of class Results of WebQuest trials with 3 experts. The results of data analysis from design experts obtained an average percentage of 80% suitable for use. The results of media expert data analysis obtained an average percentage of 90% suitable for use. The results of material expert data analysis obtained an average percentage of 88% suitable for use. The results of individual data analysis obtained an average percentage of 86.6% suitable for use. The results of small group data analysis obtained an average percentage of 85.7% suitable for use. The results of field test data analysis obtained an average percentage of 83.1% suitable for use. The number of students who fulfill the SKM reaches a percentage level of 87.5%, so the product is said to be effective. Meanwhile, in individual trials, small groups and field trials, it can be concluded that the WebQuest that has been developed is valid and suitable for use in learning activities. Learning with WebQuest can be the main alternative for online learning during the Covid-19 pandemic. WebQuest makes it easy for students to access study material by simply opening one website page. Apart from the material in WebQuest, there are also assignments/activities that can attract students to learn using WebQuest.Keyword: WebQuest, Study activity in the time of Covid-19 Pandemic, Indonesian History.

Analysis of ECCC cross-weld creep test data on grade 92 steel

ABSTRACT The UK High Temperature Power Plant Forum have completed a long term cross-weld creep test programme on a Grade 92 steel pipe. This paper describes an analysis of the creep test data. The weld strength factor (WSF), i.e. the ratio of cross-weld strength to base material strength for a specified rupture time and temperature, is shown to be a unique function of a dimensionless parameter S, the creep test stress divided by ultimate tensile strength at the test temperature. The key practical finding is that, since a single universal cross-weld creep life parametric is applicable to all temperatures, long-term behaviour at service temperatures should reliably be predictable from short-term tests at accelerated temperatures.

Shaking table test for subway station considering the influence of diaphragm walls

AbstractUnderground diaphragm walls are commonly used as a support system for the construction of subway stations, working together with inner side walls of subway stations to withstand the pressure from surrounding soils. However, the effect of diaphragm walls on the seismic response of subway stations is still not well understood yet, or at least not well considered during design. In this paper, a series of 1 g shaking table tests is designed to investigate the seismic response of a typical two‐story and three‐span subway station considering the influence of underground diaphragm walls. The stratum is simulated by synthetic model soil (a mixture of sand and sawdust), and the model structure and diaphragm walls are made by granular concrete with galvanized steel wires. A test case of the structure without diaphragm walls is also involved and taken as a benchmark comparison to understand the impact of diaphragm walls on the seismic response of subway station. The seismic excitations for the test include actual seismic records with the amplitude of 0.2, 0.4, and 0.8 g, respectively. Based on the test data analysis, a comprehensive discussion is conducted on the influence of diaphragm walls on the seismic design of underground structures. Current misconceptions that ignoring the role of diaphragm walls is a conservative way in seismic design of underground structures are also reviewed. Results show that the presence of underground diaphragm walls would enhance the lateral stiffness of the structure, and thus significantly reduce the lateral deformation of subway stations during earthquakes. Notably, the structure with diaphragm walls also exhibits a significant amplification in acceleration response and experiences greater dynamic earth pressures on the sidewalls, and furthermore the strains at the connection between the sidewalls and diaphragm walls are dramatically amplified during the earthquake. It is worth noting that these adverse effects of the diaphragm walls on the amplification of dynamic earth pressures on the structure as well as the increase of internal forces at the sidewalls end‐diaphragm walls connection should be carefully considered in the seismic design of underground structures.

Wide-bore polyester sutures may create sufficient collagen for cure of prolapse/incontinence: a work in progress.

The main thrust of the Integral Theory Paradigm (ITP) is that inadequate ligament collagen causes pelvic organ prolapses (POP) and pelvic symptoms, a concept validated by multiple publications which cured POP and bladder/bowel/pain dysfunctions by collagen-creating slings. Sling surgery for surgical cure of these conditions was eliminated in the United States, Europe and other regulatory jurisdictions by banning all mesh products (including tapes) in about 2017. The aim of this work was to inform of the progress of a highly promising alternative method for collage creation for ligament repair: wide-bore polyester sutures accurately applied to weak ligaments. The scientific rationale for the wide-bore polyester plication method was a revisit and analysis of prior Instron testing data from a rejected polyester aortic graft from a doctoral thesis. The analysis indicated that the collagen produced by No. 2 polyester sutures would be sufficient to repair weakened pelvic ligaments. The surgical methodology consisted of application of wide-bore No. 2 or No. 3 polyester sutures to existing vaginal surgical techniques such as cardinal/uterosacral ligament (CL/USL) repair in the Fothergill operation, deep transversus perinei (DTP) ligamentous supports of the perineal body (PB) and uniquely, pubourethral ligament (PUL) repair for stress urinary incontinence (SUI). No vaginal tissue was excised. These operations are now being performed in several centres around the world. Because of this, the results detailed below are indicative only, and necessarily incomplete, as they are only from these units. Twelve month data (n=35) for SUI cure (83%) following PUL repair by the urethral ligament plication (ULP) operation has been submitted for publication; POP quantification (POPQ) points Ba, C, Bp, D were significantly improved at 6 weeks postoperative review following repair of CLs (cystocele) and USLs (uterine/apical prolapse) (n=56): deep transverse perinei ligament repair (descending perineal syndrome "DPS") (n=4) were cured at 6-12 months review. Though numbers are few, in the context of DPS being considered incurable, these numbers are significant. Except for the ULP operation, the techniques for cystocele, uterine prolapse, perineocele were essentially evolved versions of the Fothergill and standard PB repairs without any vaginal or ligament excisions. Though promising, more extensive and longer-term results are clearly required before this wide-bore polyester ligament repair method can become mainstream.

Utilization of Interactive Media Articulate Storyline In Chemical Bonding Learning For Grade X High School

Educational media can enhance student outcomes and interest in learning about chemical bonds. This study utilized an interactive learning media, Articulate Storyline. This research attempts to: 1) Determine the learning outcomes of students taught using Articulate Storyline and 2) their interest in learning compared to conventional educational media, namely PowerPoint; and 3) identify the correlation between learning outcomes and the interest of students taught with Articulate Storyline. 50 students from classes X-3 and X-9 were selected based on their homogeneity status as the sample. A two-tailed t-test and a correlation coefficient test data analysis. Results: 1) The learning outcomes of students using Articulate Storyline were higher than those using PowerPoint, with scores obtained by students using Articulate Storyline (86.4 ± 4.90) and PowerPoint (81.4 ± 6.54), and a tcount (3.059) > ttable (1.677). 2) The learning interest of students using Articulate Storyline was higher than that of students using PowerPoint, with scores obtained by students using Articulate Storyline (82.65 ± 2.22) and PowerPoint (79.70 ± 2.85), and a tcount (3.94) > ttable (1.677). 3) There was a positive correlation between the learning outcomes and interest of students taught with Articulate Storyline, where the calculated rcount (0.931) > rtable (0.396).

The Influence of Organizational Culture and Work Motivation on Employee Performance with Job Satisfaction as a Mediation Variable at PT. Bengkulu Kokoh Perkasa

This research aims to analyze the influence of organizational culture and work motivation on employee performance with job satisfaction as an intervening variable. This research was conducted at PT Bengkulu Kokoh Perkasa, with a population of 64 employees, namely all employees and 64 respondents. This data was collected using a 1-6 Likert Scale questionnaire. Data analysis used the SEM-PLS quantitative method with the help of PLS 4.0 software. Based on the test results and data analysis of this research, it was found that 1) organizational culture has a positive and significant effect on employee performance, 2) work motivation has a negative and insignificant effect on employee performance, 3) organizational culture has a positive and significant effect on job satisfaction, 4) work motivation has a positive and significant effect on job satisfaction, 5) job satisfaction has a positive and significant effect on employee performance, 6) job satisfaction can mediate the relationship between organizational culture and employee performance, 7) job satisfaction can mediate work motivation on employee performance.

Pengaruh Penggunaan Media Pembelajaran Wordwall terhadap Hasil Belajar Peserta Didik di SMAN 51 Jakarta

This study aims to determine the effect of learning media Wordwall based website on the learning outcomes of the cognitive domain of students in the material on the spread of culture in class XI SMA Negeri 51 Jakarta. This research is included in the type of experimental research with a quantitative approach and research design, namely Pre-Test and Post-Test Control Group Desain which uses 2 types of classes, namely the experimental class and also the control class. In this study using analysis techniques by conducting instrument tests with validity and reliability tests, data testing by processing the results data Pre-Test and Post-Test, and test data analysis with normality test, homogeneity test and test Independent Simple T-Test. And this research can be concluded with the acquisition of test results Independent Simple T-Test with the number 0.000 which means that H0 rejected and Ha accepted which has a reference to the value of Sig. < 0.05. It can be concluded that there is a positive effect on increasing cognitive learning outcomes in class XI SMAN 51 Jakarta after using media-based learning website or application Wordwall in learning Geography on the sub-material of the Distribution of Indonesian Cultural Diversity.

Organoleptic Test of Salam Leaves (Syzygium polyanthum) as an Herbal Drink with the Addition of Moringa Leaves (Moringa oleifera L.)

Tea is a fresh drink made from processed tea leaves. Bay leaves and Moringa leaves are used as the main ingredients in making this tea. Syzygium polyanthum and Moringa oleifera L. plants contain the same compounds, namely flavonoids and have anti-inflammatory properties. The purpose of this study was to measure antioxidant and flavonoid levels in the making of bay leaf tea with the addition of Moringa leaves, as well as conduct organoleptic tests in Kampung Dalam Village. This research method is experimental with quantitative data analysis, using four formulations in antioxidant and flavonoid tests, namely 80%: 20%, 70%: 30%, 60%: 40%, and 50%: 50%, as well as survey method with quantitative data analysis for organoleptic properties test. The results showed that the highest antioxidant and flavonoid levels were found in the 80:20% formulation, which were 13.22 ppm and 42.7500 mQE/g. The organoleptic assessment results showed that the 50%:50% formulation had the highest level of liking at 75% with a neutral description. In addition, the 70%:30% formulation has the highest aroma level of 77.5% with a scented description, the 50%:50% formulation has the highest taste level of 70% with a tasteless description, and the 50%:50% formulation has the highest color level of 67.5% with a yellowish green description. The conclusion is that the addition of moringa leaves as an herbal drink to bay leaves has a significant effect on liking, aroma, taste and color

Abstract 3100: Interactive analysis of drug testing data for functional precision oncology with Breeze 2.0

Abstract High throughput screening (HTS) is used to screen large numbers of small molecules in cell-based assays to predicting their potential therapeutic response and when applying approved drug libraries using HTS it becomes drug repurposing. The Drug Sensitivity and Resistance Testing (DSRT) platform established at FIMM has been extensively used in testing panels of approved and investigational drugs on cells, both conventional cell lines and primary cell models derived from cancer patient samples. The results help in deepen our understanding of drug efficacy in individual patients and across specific disease to guide future patient stratification. Breeze 2.0 is an open access, web-based platform for interactive analysis of drug screening data in real time. Breeze accepts raw data in a simple tabular format and generates detailed quality control metrics, plots, dose-response curve fits, drug response quantification in form of IC50/EC50/AUC and Drug Sensitivity Scores (DSS). Besides tabular results, Breeze generates interactive, informative, and intuitive visualizations, such as plate heatmaps, scatterplots, barplots, clustered heatmaps, circular plots, for further analysis. Based on manually-curated published datasets available through Breeze 2.0, users can instantly compare their drug response patterns with the existing DSRT profiles from patient samples, as well as cell lines. Importantly, Breeze 2.0 has integrated curated reference DSRT data tested on bone marrow samples from healthy control individuals, which plays a crucial role in understanding cancer-selective drug response by de-prioritizing generally toxic compounds. The end-users can select multiple healthy controls or relevant patient/cell line samples and choose the drugs of interest to visualize the overlaid dose responses, as well as response quantification metrics. Breeze 2.0 is built in R, PHP, MySQL and is freely accessible at https://breeze.fimm.fi/v2 Citation Format: Swapnil Potdar, Filipp Ianevski, Aleksandr Ianevski, Ziaurrehman Tanoli, Krister Wennerberg, Brinton Seashore-Ludlow, Olli Kallioniemi, Päivi Östling, Tero Aittokallio, Jani Saarela. Interactive analysis of drug testing data for functional precision oncology with Breeze 2.0 [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2024; Part 1 (Regular Abstracts); 2024 Apr 5-10; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2024;84(6_Suppl):Abstract nr 3100.

The Influence of Instructional Strategy and Motivation the Natural Science Subject Instructional Outcomes

Lecture instructional is the instructional that students are asked to listen to the subject materials conveyed to be absorbed properly. Meanwhile, discussion instructional is the instructional where students are asked to discuss the subject materials that have been delivered to be understood properly. The objectives of this study are to test: (1) the difference in instructional outcomes of Natural Science subject given by lecture instructional and discussion instructional, (2) the difference in instructional outcomes of Natural Science subject given by lecture instructional and discussion instructional to students who are highly motivated to learn, (3) the difference in instructional outcomes of Natural Science subject given by lecture instructional and discussion instructional to students who are low motivated to learn, (4) the influence of the interaction between instructional strategy and learning motivation on the instructional outcomes of Natural Science subject. A quasi-experimental design with a 2 x 2 factorial design. The instructional material in the experiment is a Natural Science problem for grade 11, with a sample of 80 students who already have adequate initial knowledge. Two-way analysis of variance and Tukey’s test were used to test data analysis. The research results point out that there was an influence of interaction between instructional strategy and learning motivation on instructional outcomes of Natural Science subjects. Lecture instructional strategyis better used in groups of students with high learning motivation and discussion instructional strategy is better used in groups of students with low learning motivation.

THE IMPACT OF BRAND IMAGE ON BOOSTING SALES OF "MS GLOW" SKINCARE IN PAMEKASAN

Academic pursuit the objective of the study is to examine the impact of brand image on sales growth and quantify the extent to which a strong brand image affects sales growth. Learn This aligns with the quantitative-descriptive approach. Target population This data consists of resellers and samples of MS GLOW Pamekasan obtained from a substantial population of 25 respondents using a specific sampling quota. Exploring advanced data collection techniques to enhance analysis This questionnaire employs testing data analysis techniques such as validity, reliability, and regression tests. Data processing approaches utilize the SPSS software tool, namely version 16.0. The research findings indicate that brand image has a significant impact on increasing sales. The t-test findings indicate that the coefficient correlation is 6.484, with a t count of 6.484 and a t table value of 1.714. The significance level is 0.000, which is less than 0.05. This provides evidence to reject the null hypothesis (Ho) and accept the alternative hypothesis (Ha). The coefficient of determination (R2) indicates that the R square value is 0.646, which is statistically significant. This means that brand image (image brand) has a significant impact on sales, accounting for 64.6% of the variation. Other variables not included in the research model account for the remaining 35.4%. This. The estimated r value of 0.646 indicates a significant correlation, falling within the range of 0.60-0.799 according to table interpretation.

Interactive Learning System for Learning Calculus.

IT tools has brought a new perspective to collaborative learning where students do not just sit in a chair and swallow lecture content but instead participate in creating and sharing knowledge. However, calculus learning augmented reality application has limitation in promoting a human collaboration in learning. This research develops an interactive application for learning calculus that promotes human-system interaction via augmented reality (AR) and human-human interaction through chat functions. The study examines the effect of both interactivities on learning experience and how that learning experience affects the performance of learning. The research adopted a quasi-experimental study design and pre-post test data analysis to evaluate the effect of interactivities on learning experience and consequently the effect of learning experience on learning performance. The subjects were exposed to the developed application for learning the calculus chapter "Solid of Revolution" in a controlled environment. The study validated its research framework through partial least squares path modelling and tested three hypotheses via pre-and post-test evaluation. The results found that both interactivities affect learning experience positively; human-human interactivity has a higher impact than the human-system interactivity. It was also found that learning performance as part of the learning experience increased from pre-test to post-test.

Firm Performance on MSMEs in Surakarta and Adjustments in Improving and Winning the Competition

The purpose of this study is to prove the real impact of Agile Marketing, Marketing Mix Adaptation, Entrepreneur Orientation and Digital Transformation on Firm Performance in MSMEs incorporated in ACSB Banjarsari Surakarta District. Data collection method with questionnaire method Analysis test tools and data processing results using SmartPls v.4.0, Outer Model analysis results show convergent validity, composite reliability, and Average Variance Extracted (AVE) that meet the criteria. Of all 83 members in 1 WhatsApp group, all of them were taken to be sampled. All independent variables have a significant effect. Digital Transformation variables have a negative effect while other variables have a positive effect.

Comparison of Student’s Learning Outcomes in Mathematics Subjects Using STAD Type Cooperatives with Peer Tutors in Grade X of SMA PGRI Betung Kabupaten Banyuasin

The learning model used is still teacher-cantered, this makes students tend to be passive in following the learning process in class, so that student learning outcomes are relatively low. To overcome this, there are many learning models that can improve student learning outcomes and require students to be active. in participating in learning activities. One of the researchers tried to use the STAD Type Cooperative learning model and Peer Tutor. The aim of this research was to find out which was better. The learning outcomes of students using the STAD Type Cooperative compared to those using Peer Tutors in class X SMA PGRI Betung, Banyuasin Regency. The population of this study were all class X students of SMA PGRI Betung, Banyuasin Regency. The samples were taken from two classes, namely classes X1 and X3, using simple random sampling techniques. The method used in this research is the experimental method. The data collection technique that the researcher carried out was a test technique and to analyse the data, statistical analysis was carried out using the t test. The results of the data analysis, which are strengthened by the results of the evaluation test data analysis, prove that the learning outcomes achieved by students in mathematics subjects using STAD Type Cooperative are better than the learning outcomes achieved by students in mathematics subjects using Peer Tutors.