Questionnaire
Questionnaire
A Questionnaire (/kwɛstʃəˈnɛər/) is a research instrument consisting of a series of questions (or other types of prompts) for the purpose of gathering information from respondents. The questionnaire has evolved over the years and is now commonly used in medical research to collect patient data.
Etymology
The term "questionnaire" comes from the French "questionnaire" and was first used in English in the early 19th century. The French word itself is derived from the Latin "quaestio" meaning "question".
Related Terms
- Survey: A method of gathering information from a sample of people, traditionally with the intention of generalizing the results to a larger population.
- Interview: A conversation where questions are asked and answers are given. In common parlance, the word "interview" refers to a one-on-one conversation between an interviewer and an interviewee.
- Research: Systematic investigation into and study of materials and sources in order to establish facts and reach new conclusions.
- Data Collection: The process of gathering and measuring information on variables of interest, in an established systematic fashion that enables one to answer stated research questions, test hypotheses, and evaluate outcomes.
Usage in Medical Field
In the medical field, questionnaires are often used to collect data on patient health, lifestyle, and treatment outcomes. They can be used in clinical trials to assess the effectiveness of a new drug or treatment, in epidemiological studies to understand the prevalence of a disease, or in health services research to evaluate patient satisfaction and quality of care.
Questionnaires can be administered in various ways, including face-to-face, over the phone, or online. They can include a variety of question types, such as multiple choice, Likert scale, or open-ended questions.
Advantages and Disadvantages
Advantages of using questionnaires in medical research include their cost-effectiveness, the ability to collect data from a large number of respondents, and the potential for anonymity, which can increase the honesty of responses.
However, questionnaires also have disadvantages. These include the potential for response bias, the inability to probe responses, and the reliance on respondent literacy and comprehension.
External links
- Medical encyclopedia article on Questionnaire
- Wikipedia's article - Questionnaire
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