qualitative analysis

Examples of qualitative analysis in the following topics:

• Qualitative and Quantitative Analysis

• Solubility Product Principle and Qualitative Analysis

  • Solubility product principle is used in qualitative analysis to determine composition of a compound by separation of ions in a solution.
  • Classical qualitative inorganic analysis is a method of analytical chemistry that seeks to find the elemental composition of inorganic compounds.
  • The entire traditional qualitative-analysis scheme is based on the use of these equilibrium constants to determine the correct precipitating ions and the correct strategy.
  • Precipitation is used in qualitative chemical analysis.
  • Describe the application of the solubility product principle in the qualitative analysis of a solution.

• Intorduction to qualitative analysis

  • This is because the various dimensional methods operate on similarity/distance matrices, and measures like correlations (as used in two-mode factor analysis) can be misleading with binary data.
  • Even correspondence analysis, which is more friendly to binary data, can be troublesome when data are sparse.
  • This approach doesn't involve any of the distributional assumptions that are made in scaling analysis.

• Describing Qualitative Data

  • The most common form of qualitative qualitative analysis is observer impression—when an expert or bystander observers examine the data, interpret it via forming an impression and report their impression in a structured and sometimes quantitative form.
  • An important first step in qualitative analysis and observer impression is to discover patterns.
  • Deciding what is a variable, and how to code each subject on each variable, is more difficult in qualitative data analysis.
  • It is more sophisticated in qualitative data analysis.
  • Quantitative analysis of these codes is typically the capstone analytical step for this type of qualitative data.

• Chemical Analysis

  • Two common techniques are precipitation analysis and colorimetric analysis.
  • These methods are called classical qualitative inorganic analysis.
  • Classical qualitative inorganic analysis is a method of analytical chemistry that seeks to find the elemental compositions of inorganic compounds.
  • This happens because cationic analysis is based on the solubility products of the ions.
  • Precipitation analysis can be used to determine the chemical makeup of the solution.

• Quantitative vs. Qualitative Research

  • Qualitative Research is the examination, analysis and interpretation of observations for the purpose of discovering underlying meanings and patterns of relationships, including classifications of types of phenomena and entities, in a manner that does not involve mathematical models.
  • Qualitative researchers aim to gather an in-depth understanding of human behavior and the reasons that govern it.
  • The qualitative method investigates the why and how of consumer behavior, not just what, where, when.
  • Qualitative researchers typically rely on the following methods for gathering information: Participant Observation, Non-participant Observation, Field Notes, Reflexive Journals, Structured Interview, Semi-structured Interview, Unstructured Interview, and Analysis of documents and materials.
  • The Following Are Some Examples of Qualitative Approaches Used in Collecting Data:

• Qualitative Variable Models

  • In statistics, particularly in regression analysis, a dummy variable (also known as a categorical variable, or qualitative variable) is one that takes the value 0 or 1 to indicate the absence or presence of some categorical effect that may be expected to shift the outcome.
  • In regression analysis, the dependent variables may be influenced not only by quantitative variables (income, output, prices, etc.), but also by qualitative variables (gender, religion, geographic region, etc.).
  • Analysis of variance (ANOVA) models are a collection of statistical models used to analyze the differences between group means and their associated procedures (such as "variation" among and between groups).
  • This type of ANOVA modelcan have differing numbers of qualitative variables.
  • Break down the method of inserting a dummy variable into a regression analysis in order to compensate for the effects of a qualitative variable.

• Analyzing Data and Drawing Conclusions

  • In statistical applications, some people divide data analysis into descriptive statistics, exploratory data analysis (EDA), and confirmatory data analysis (CDA).
  • The type of data analysis employed can vary.
  • One way in which analysis often varies is by the quantitative or qualitative nature of the data.
  • Coding is the process of categorizing qualitative data so that the data becomes quantifiable and thus measurable.
  • Qualitative data can be coded, or sorted into categories.

• Determining the Research Design

  • One of the most intensive forms of qualitative research is participant observation.
  • Another distinction can be made between quantitative methods and qualitative methods.
  • Qualitative methods are often used to develop a deeper understanding of a particular phenomenon.
  • They also often deliberately give up on quantity, which is necessary for statistical analysis, in order to reach a greater depth in analysis of the phenomenon being studied.
  • While quantitative methods involve experiments, surveys, secondary data analysis, and statistical analysis, qualitatively oriented sociologists tend to employ different methods of data collection and hypothesis testing, including participant observation, interviews, focus groups, content analysis, and historical comparison .

• Quantitative and Qualitative

  • Quantitative sociologists tend to use specific methods of data collection and hypothesis testing, including: experimental designs, surveys, secondary data analysis, and statistical analysis.
  • Qualitative methods of sociological research tend to approach social phenomena from the Verstehen perspective.
  • Qualitatively oriented sociologists tend to employ different methods of data collection and analysis, including: participant observation, interviews, focus groups, content analysis, visual sociology, and historical comparison.
  • They view quantitative and qualitative approaches as complementary.
  • Similarly, qualitative patterns in society can reveal missing pieces in the mathematical models of quantitative research while quantitative patterns in society can guide more in-depth analysis of actual patterns in natural settings.