What question did this study set out to answer?

The study aims to clarify the importance of defining research objectives in respiratory research projects.

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April 1, 2026

Principles of Statistics in Respiratory Research: Part 2. Research Design: Establishing the Research Objective and Determining the Type of Data to Collect

Key Points

The study aims to clarify the importance of defining research objectives in respiratory research projects.
Identify the research objective clearly.
Develop a research design based on the defined objective.
Determine the types of measurements needed: nominal, ordinal, discrete, and continuous.
Select appropriate statistical analyses based on measurement types.
Highlighting the importance of clearly defined research objectives.
Outlining the four measurement types and their roles in statistical analysis.

Abstract

A clear understanding of the research objective is the first step in a research project. After the objective is clearly defined, a research design can be developed to achieve the objective. The first design consideration is to determine what measurements will be collected. The four types of measurements are termed nominal, ordinal, discrete, and continuous. The researcher must be able to identify these in order to choose the correct statistical analysis to carry out.

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