What Is Qualitative Research?

Takashi Otani1

  • 1Graduate School of Education and Human Development, Nagoya University.

Summary

This article explains qualitative research methods, detailing their definition, characteristics, procedures, and theoretical underpinnings. It also contrasts qualitative with quantitative approaches and discusses mixed methods, emphasizing epistemology in research.

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For solutions containing mixtures of different cations, the identity of each cation can be determined by qualitative analysis. This technique involves a series of selective precipitations with different chemical reagents, each reaction producing a characteristic precipitate for a specific group of cations. Metal ions within a group are further separated by varying the pH, heating the mixture to redissolve a precipitate, or adding other reagents to form complex ions.
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