From qualitative to quantitative approach. The researchers’ way in designing mixed research

The article describes the process of designing a mixed strategy – from the qualitative approach to the quantitative approach. Important in this approach is the idea of integrating both research strategies, which is supposed to foster more effective cognition of the studied phenomenon. The authors describe the stages of the conducted qualitative research (theoretical assumptions, methods of collecting and analyzing empirical data) and the planned stages of quantitative research aimed at constructing a psychometric tool based on the cognitive effects of qualitative research. The article presents the results of qualitative research (the first stage of the mixed strategy) – the Model of Life Re-Decisions (four stages of self-relation) and Biographical Orders. The model depicts breakthrough life changes in the context of self-realization, from the perspective of broad humanistic psychology. The authors’ intention is to draw attention to the value of teamwork and to inspire readers to break through research patterns (searching for new research solutions).