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What is the main focus of the lecture by Dr. Mostafa Shokoohi on questionnaire development?
Questionnaire development and data collection.
What does systems thinking in questionnaire design address?
It identifies underlying causes of complex problems for sustainable solutions.
In the context of smoking and liver disease, what key confounder must be considered?
Alcohol consumption.
What is the Infectious Disease Epidemiology Triad?
Agent, host, and environment.
What types of questions allow unlimited responses?
Open-ended questions.
What is a limitation of closed-ended questions?
They may not capture true opinions.
What are dichotomous questions?
Closed-ended questions that offer two options, such as 'yes' or 'no'.
Why is anonymity important in surveys?
It protects participants' identities and encourages honest responses.
What is habituation in the context of surveys?
An error where participants become accustomed to giving the same response.
How should a questionnaire be organized for best results?
Start with easy questions and transition to more difficult or sensitive ones.
What is internal consistency in reliability?
Items in a survey instrument measure different aspects of the same concept.
What does a high Cronbach’s Alpha indicate?
Minimal random error and high reliability of the assessment tool.
What does Kappa Statistic measure in survey reliability?
The level of agreement between evaluations beyond chance.
What is content validity?
Ensures the questionnaire fully represents the construct it intends to measure.
What is the purpose of pilot testing surveys?
To evaluate the feasibility of a full-scale research project.
What should be evaluated during pilot testing?
Wording and clarity of questions, order of questions, and participants’ willingness to respond.
What are filter questions in surveys?
Questions that determine respondent eligibility for subsequent questions.
What is the difference between closed-ended and open-ended questions?
Closed-ended questions have limited responses; open-ended questions allow unlimited responses.
Why use back translation for survey instruments?
To ensure that translations maintain the same meaning as the original.
What is construct validity?
Confirms that the questionnaire accurately measures the theoretical construct.
What is the role of theoretical frameworks in questionnaire design?
They guide the selection of diverse questions for the survey.
What is the recommended approach for grouping questions in a survey?
Group similar questions with similar response types or mix them to prevent habituation.
What is the main focus of reliability in surveys?
It measures the consistency of responses to similar questions.
What distinguishes validity from reliability in questionnaires?
Validity assesses accuracy, while reliability assesses consistency.
What is criterion validity?
Compares the measure against a criterion, including concurrent and predictive validity.
What is an example of a validated tool in mental health assessment?
Beck Depression Inventory (BDI).
What is a key benefit of using established questions in survey development?
It enhances the validity of the survey.
What is an example of environmental factors in the context of epidemiology?
Water/air quality or occupational hazards.
What should be avoided in the layout and formatting of a questionnaire?
Overcrowding pages and grammatical errors.
What is the importance of a natural flow in questionnaire questions?
It ensures respondents can answer comfortably and coherently.
What type of validity ensures the measure does not correlate with unrelated constructs?
Discriminant validity.
What are ordinal questions in questionnaires?
Questions that have ranked responses with an inherent order.
What limitation exists for open-ended questions regarding data analysis?
They are time-consuming and imprecise to code for analysis.
What is one method for verifying the accuracy of translated surveys?
Independent translation and consensus process.
Why should survey designers analyze the potential confounders in their research?
To accurately assess relationships among variables.
What is an implication of using skip logic in computer-based surveys?
Automatically hides irrelevant questions based on previous answers.
What measuring tool is used for binary variables in assessing internal consistency?
Kuder-Richardson Formula 20 (KR-20).
What type of questions would best assess personal health experiences?
Open-ended questions.
What is the value of using multiple rounds of pilot testing?
To refine the survey instrument based on participant feedback.
What should be done if a questionnaire feels too long?
Identify and remove less important questions.
What are paired comparison questions used for?
To compare two options directly.
What can lead to inaccuracies in surveys related to sensitive topics?
A lack of anonymity for participants.
What should be assessed in the reliability of assessments during test-retest?
If individuals score similarly over different times.
What is an example of convergent validity?
A new measure correlating with existing validated measures of the same construct.