Anonymized Student Performance Data from Two Linear Algebra Courses Using STACK at the University of Trieste (2023/24)

📄 Dataset Description: STACK-Integrated Assessment in Linear Algebra CoursesThis dataset contains anonymized student performance records from two first-year Linear Algebra courses within the Engineering BSc program at the University of Trieste, Italy. The data spans two academic years, capturing student outcomes before and after the introduction of the STACK e-assessment system.📅 Academic Years Covered:2022/23 (Pre-STACK): Before the integration of STACK.2023/24 (Post-STACK): After STACK was introduced in both courses (Course A and Course B).In addition to exam performance data, we include STACK Moodle quiz analytics for the 2023/24 academic year.🔒 Note: In accordance with university policy, only the final grades of students who passed the exam are recorded. As such, all datasets include only students who scored 18 or higher (out of 30).📁 Files IncludedFilenameDescriptionanonymized_Lin_Alg_course_A_preSTACK.csvCourse A exam scores before STACK was implemented.anonymized_Lin_Alg_course_B_preSTACK.csvCourse B exam scores before STACK was implemented.combined_Lin_Alg_course_A_postSTACK.csvCourse A exam scores after STACK integration, with quiz metrics.combined_Lin_Alg_course_B_postSTACK.csvCourse B exam scores after STACK integration, with quiz metrics.anonymized_STACK_quiz_data_CourseA.csvMoodle-exported STACK quiz attempt data for Course A.anonymized_STACK_quiz_data_CourseB.csvMoodle-exported STACK quiz attempt data for Course B.🧩 Variables in the Exam Score FilesVariableDescriptionstudent_IDA randomly generated, anonymized ID for each student. The ID format encodes the course and whether the record is from the Pre- or Post-STACK period. Example: studentID023_COURSE_A_POSTSTACKfinal_exam_gradeFinal exam score (0–30). Only includes students who passed (≥18).Additional Variables in Post-STACK Datasets:VariableDescriptionnum_quiz_submissionsTotal number of STACK quiz submissions made by the student.quiz_submission_variabilityVariance in the relative timing of quiz submissions. Lower values indicate more consistent engagement.avg_quiz_scoreAverage score across all STACK quizzes.cat_total_scoreSum of best scores per quiz, representing the student's STACK-based Continuous Assessment Test (CAT) total.🧮 Variables in Moodle STACK Quiz DataThe Moodle quiz files (anonymized_STACK_quiz_data_CourseA.csv, CourseB.csv) contain row-level quiz attempt records.VariableDescriptionstudent_IDAnonymized ID linked to the exam data.quizIDIdentifier for the specific STACK quiz.Started onTimestamp when the student began the quiz.CompletedTimestamp when the quiz was submitted.Time takenTime between start and submission (e.g., "11 days 22 hours").Grade/10.00The student’s score on the quiz, out of 10.