UNIT 4: Study Protocols
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What are the 3 study protocols?
What is Questionnaire/survey & types of them?
Assesses things that are easily reported, difficult to observe.
- -Paper/pencil (face to face, email)
What are interviews and how are they done?
Assess things that are sensitive, complex
- -face to face
- Can be:
- 1-Unstructured: few, open-ended questions
: Questions with probes (somewhat structure)
: Questions w/ response options
What are observation formats?
1- Focus groups: Group of experts come together to discuss particular topic (you can videotape and then observe)
2- Direct observation: observe family in direct environment
3- Participant observation: You are participating
4- Structured interaction: Specific behavior we want to learn about
What is interviewer bias?
Occurs when the interviewer subtly biases the respondent to respond in one way or another
What is correlation research?
Describes linear relationship between Z or more variables without any hint of attributing the effect of one variable on another.
What is a Pre-Experimental Design and what are it's 2 types? Problem of design?
Don't include control group and lack random selection of participants from population.
1- One shot study design: experiment design in which one group receives only one test.
2- One group pretest post test design: Experimental design in which one group receives both a pretest and post test.
Problems is, no control groups.
What are the 3 Longitudinal ways to collect information from different time points?
1- Retrospective data collection
2- Current data collection
3- Prospective data collection
What is retrospective data collection?
Has all research stages, study designs, and time points.
Collects information about past events, behaviors and conditions.
-change and time sequences are weak
What is current data collection?
Has all research stages, all study designs, and all time points.
Collects information about current events, behaviors and conditions.
-Change and time sequences are present if longitudinal
What is prospective data collection?
1- no one in sample has experienced the variable interest
2- repeatedly collect current information about events, behaviors and conditions
3- not future changes in variable of interest.
-causality (if experiment) and change and time sequenced.
What is selective attrition?
Over time, certain people dropout of the study.
What are the time pts, design and research questions for each stage of research?
Stage- Time point- Design- Research Question
- S6 Eval- Longitudinal- Experimental- Causality
- S5 Inter- Longitudinal- Exp; QE - Causality
- S4 Pred- Longitudinal- Exp; QE - Causality
- S3 Explo- Longitudinal- Descriptive- relationship
- S2 Descrip- Longitudinal- Descriptive- Descriptive
What would you like to do?
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