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Related Concept Videos

Qualitative Analysis03:46

Qualitative Analysis

23.8K
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.
For instance, group IV...
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Qualitative Analysis01:10

Qualitative Analysis

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Qualitative analysis is the process of identifying elements, ions, or compounds in an unknown sample. It is the first and most fundamental type of analysis based on the hierarchy of analytical goals. This hierarchy is significant as it provides a structured approach to scientific research, with qualitative analysis serving as the initial step, providing essential information before moving on to quantitative or other forms of analysis.
There are two main approaches to qualitative analysis:...
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Case Studies01:22

Case Studies

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There are many research methods available to psychologists in their efforts to understand, describe, and explain behavior and the cognitive and biological processes that underlie it.
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Vapor Pressure02:34

Vapor Pressure

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When a liquid vaporizes in a closed container, gas molecules cannot escape. As these gas phase molecules move randomly about, they will occasionally collide with the surface of the condensed phase, and in some cases, these collisions will result in the molecules re-entering the condensed phase. The change from the gas phase to the liquid is called condensation. When the rate of condensation becomes equal to the rate of vaporization, neither the amount of the liquid nor the amount of the vapor...
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Alkali Metals03:06

Alkali Metals

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Group 1 elements are soft and shiny metallic solids. They are malleable, ductile, and good conductors of heat and electricity. The melting points of the alkali metals are unusually low for metals and decrease going down the group, while the density increases going down the group with the exception of potassium (Table 1).
Table 1: Properties of the alkali metals
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The Nernst Equation02:59

The Nernst Equation

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Nonstandard Reaction Conditions
The interconnection between standard cell potentials and various thermodynamic parameters such as the standard free energy change ΔG° and equilibrium constant K has been previously explored. For example, a redox reaction involving zinc(II) and tin(II) ions at 1 M concentration with Eºcell = +0.291 V and ΔG° = −56.2 kJ is spontaneous.
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What is Qualitative in Qualitative Research.

Patrik Aspers1,2, Ugo Corte3

  • 11Department of Sociology, Uppsala University, Uppsala, Sweden.

Qualitative Sociology
|May 21, 2019
PubMed
Summary

This study defines qualitative research as an iterative process that enhances scientific understanding by making new distinctions through closer examination of phenomena. This definition aims to improve research design and communication across methodologies.

Keywords:
EpistemologyMethodsPhenomenologyPhilosophy of scienceQualitative research

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Area of Science:

  • Social Sciences
  • Research Methodology

Background:

  • Defining qualitative research precisely is challenging due to limited literature.
  • Existing work offers scattered insights into its core elements.

Purpose of the Study:

  • To systematically search, identify, and analyze sources defining "qualitative research."
  • To formulate and illustrate a clear definition of qualitative research.
  • To provide a tool for improving research design and interdisciplinary communication.

Main Methods:

  • Systematic literature search and analysis of 89 sources.
  • Drawing on existing theoretical work and empirical studies (e.g., Becker's marijuana study).
  • Formulating a definition based on identified core elements.

Main Results:

  • A definition of qualitative research is proposed: an iterative process yielding improved scientific understanding through new distinctions derived from proximity to the phenomenon.
  • This definition highlights the role of "getting closer" to the subject matter.

Conclusions:

  • The proposed definition serves as a tool to enhance research design and evaluation.
  • It can facilitate teaching, communication, and bridge the gap between qualitative and quantitative research.
  • Acknowledges the presence of qualitative dimensions within quantitative research.