The aim of this course is to teach students theoretical/empirical knowledge and research skills that go beyond the classic research methods, such as traditional survey, observations and interviews. Based on theoretical models and different method approaches (e.g., survey data, observations, daily life data, physiological data) that students have learned in previous courses and years, students will obtain knowledge about theoretical and empirical differences, e.g.,between nomothetic-ideographic theories(top down-button up) and their scientific application in (longitudinal)research designs.Psychological phenomena from different psychological domains (e.g., clinical and forensic psychology, human resource studies, organization psychology)are introduced and explained from a multi-assessment method. In addition, students are introduced to various advanced assessment and intervention tools, such as virtual reality, experience sampling method, situational judgement tests, single case research(SCR)and network analysis.Students are also taught to apply acquired knowledge about research designs to answer their research questions, whereby setting up an optimal research design is a purpose(via assignments). In the context of SCRand ESM, attention is also paid to, e.g., bias principles, such as ceiling effect and measurement errors.Extended assessment methods assume that research in complex human behaviour should use a broad range of complementary factors/methods to explain that complex human behaviour.