Research Methology and Biostatistics
Keywords |
Classification |
Keyword |
OFICIAL |
Physical Sciences |
Instance: 2021/2022 - 2S 
Cycles of Study/Courses
Teaching language
Portuguese
Objectives
The objectives of the course are to emphasize statistical concepts obtained in the discipline of the 1st semester, namely in the comparison of groups.
To highlight the relationship between statistical association and causality. To demonstrate the feasibility of different diagnostic methods according to their properties and, finally, to point out the importance of the relationship between the research question, the structure of an epidemiological study, the methods of measurement and statistical analysis.
Learning outcomes and competences
It is intended that students be able to compare two groups, test associations and correlations. Students should acquire the basics of modeling in statistics, i.e., forecasting models. In the field of diagnostic methods, students should be able to estimate and interpret their validity and reliability. Students should distinguish between the different study designs for implemented and their main advantages and disadvantages accordingly to previous objectives. Finally, it is intended that students acquire competences to judge the causal association.
Working method
Presencial
Program
U Mann-Whitney test
Wilcoxon test
Qui-Squate Test
McNemar Test
Correlation and linear regression
Spearman correlation
Normality concepts in Clinical Epidemiology
Diagnosis tests - Evaluation of validity and realibility (Kappa statistic). ROC curves
Research models
Causality in Biomedical Sciences
Mandatory literature
João Marôco;
Análise estatística - com utilização do SPSS. ISBN: 978-972-618-452-2
Wayne W. Daniel;
Biostatistics. ISBN: 978-0471-45654-4
Leon Gordis;
Epidemiology. ISBN: 978-1-4160-4002-6
Teaching methods and learning activities
Theoretical and practical classes with computer software support. Use of the Moodle platform for forums of discussion and self-assessments.
Evaluation Type
Distributed evaluation with final exam
Assessment Components
Designation |
Weight (%) |
Participação presencial |
10,00 |
Exame |
45,00 |
Teste |
45,00 |
Total: |
100,00 |
Amount of time allocated to each course unit
Designation |
Time (hours) |
Estudo autónomo |
90,00 |
Frequência das aulas |
45,00 |
Total: |
135,00 |
Eligibility for exams
Practical and theoretical-practical classes are subject to the regime of absences.
Minimum compulsory attendance in all classes (75%).
Students attending the previous school year are not subject to the regime of absences, not benefiting from attendance.
Calculation formula of final grade
Regular season: The evaluation system consists of the procedural method of assessment, summative and discontinuous, spread over three steps: 1st Moment of assessment (T1) - Theoretical test (quote 45%), 2nd Moment (P2) - Practical exam of statiscal analysis with SPSS and calculation (quote 45%), 3rd Moment - Attendance (quotation stratified in relation to attendance, in addition to the mandatory minimum and a maximum of two values - 10%).
The approval is made to depend on a minimum grade of 10 marks at any moment of evaluation described. Formula assessment procedure, discontinuous and summative: final assessment = 0,45*T1 + 0,45*P2 + attendance. Students often failed in the previous year, but did not have the attendance component. The approval will be according to the formula of final evaluation = T1*0.5 + 0.5 * P2, depending on a minimum score of 10 in two evaluation described T1 and P2.
Appeal chance: Will be submitted to the examination appeals, students without prior approval and which have no more than 25% of faults in relation to the lessons given (taking frequency arising out of or in previous years). This method of evaluation consists of an examination - theoretical exam (T) and a practical exam (P) not subject to minimum grade. Students with a grade of 14 in theoretical exam obtained in the respective normal season will be excuse. Formula assessment for final exam. Final Exam assessment = 0,5*T + 0,5*P.
Special assessment (TE, DA, ...)
Extraordinary evaluation (September):
This evaluation is composed by a theorectical exam (T) and a practical exam (P). Minimum remarks are not required.
Final classification=0,75*T + 0,25*P
Classification improvement
Appeal chance: according to the same formula