Subject
- Research Design6
- Experimental design4
- Periodicals4
- Research4
- Periodical3
- Social sciences3
- Behavioral Sciences2
- Psychology, Experimental2
- Qualitative research2
- behavioral sciences2
- Aparells i instruments científics1
- Behavioral Research1
- Cancer1
- Case method1
- Clinical trials1
- Conducta (Psicologia)1
- Databases1
- Education1
- Evidence-Based Medicine1
- Evidence-based medicine1