★ Must-know
Further detail
📌 A pilot study should be conducted before releasing a survey to identify problems in the questionnaire.
Purpose → questions → administration → sampling
★ Must-know
📌 Open-ended questions allow free responses that are more complete and harder to code, whereas close-ended questions offer limited choices that are easier to code but may be simplistic or forced.
Further detail
Open-ended questions require more effort from participants, are more suited to smaller or preliminary studies, and are less prone to coding errors than close-ended questions.
A categorical question can ask whether a respondent is single, married, divorced, or widowed.
A visual analogue scale asks respondents to mark a position on a line between two endpoints, such as “Not pain at all” and “In a lot of pain.”
Open-ended gives richer responses; close-ended is easier to code
★ Must-know
📌 Each survey item should address one clearly stated issue and avoid double-barreled questions that ask about two issues at once.
📌 Questionnaires should use unambiguous wording so that response options have a clear meaning.
📌 Acquiescence is the tendency to agree regardless of question content, and possible solutions include reverse scoring and attention checks.
📌 Question framing should avoid wording that biases results, especially when asking sensitive questions.
Further detail
DOASF: Double-barreled, Order, Acquiescence, Social desirability, Framing
★ Must-know
📌 Probability sampling aims to give individuals an equal and independent chance of being selected.
Further detail
Non-probability convenience sampling selects participants for practical reasons, such as recruiting HP1100 students.
Simple random sampling can use a random number generator to select participants.
Multistage sampling randomly selects individuals within selected clusters, such as sampling individuals within each of three selected factories.
Probability sampling gives selection chances; convenience sampling prioritizes practicality
★ Must-know
📌 Observational research still requires clear, specific, and objective measurement of behavior.
Further detail
Observation records behavior, archival research reuses data, and case studies examine individual cases
Non-Experimental Methods Compared
| Method | Data source or setting | Primary focus |
|---|---|---|
| Survey | Participants’ responses | Attitudes, experiences, or opinions |
| Observation | Natural environment | Behavior with minimal disturbance |
| Archival research | Existing data | Previously collected records or datasets |
| Case study | Individual case | In-depth examination of a phenomenon |
Test your knowledge on Week 3 with 10 multiple-choice questions with detailed corrections.
1. What is the central purpose of survey research?
2. What is the primary purpose of survey research?
Memorize the key concepts of Week 3 with 11 interactive flashcards.
What is the main goal of survey research?
To collect responses to understand a research purpose.
Survey Purpose Label
To understand research goals and questions.
What is the purpose of conducting a pilot study before a survey?
To identify problems in the questionnaire.
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