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31 Cards in this Set
- Front
- Back
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What is the difference between basic and applied research questions?
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Basic just wants to understand the phenomenon, applied wants to make an application (e.g. treatment)
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What are some factors to consider when designing a study?
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Ethics
Feasibility Past research What type of method, depends on questions |
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What are 3 types of sampling bias:
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Experimenter bias: choosing specific to get results want
Self-selection bias: people come into study with bias Attrition bias: people drop out of study |
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How are confounds of internal validity ruled out?
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Random assignment
Control groups Analogue model (controlled lab) |
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What is correlation?
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Linear relationship between two variables, one goes up/one goes up too, or down
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What are factors that can limit correlation?
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Homogeneous group (each group same, but r increasing)
non linear relationship unreliable measurement ceiling/floor effects (only can start 1 place or go so far) |
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True or false: Correlation has no issues with directionality
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False. Correlation cannot infer causation
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Why are placebos hard to administer in psych experiments?
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Because you cannot easily make a "fake" treatment
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True or false: Experimental research has high external validity
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False. Often lab not like real life
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Compare cross-sectional to longitudinal research designs.
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Cross sectional is a "snapshot" of different groups at one time
Longitudinal is one group at many times |
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What is sequential design?
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Mix of cross sectional and longitudinal. Several groups over time
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What is a concern with cross sectional design?
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Cohort effects
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What are cohort effects?
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Something about the people of that time is unique
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What is a concern of longitudinal design?
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Cross-generational effect: uniqueness of the generation
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What is the patient uniformity myth?
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That "one size fits all"
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What is epidemiology?
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primarily for medical diseases, but useful for psych disorders
study of incidence distribution and consequences of particular problem |
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What is incidence?
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estimate of new cases
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What is prevalence?
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Number of total cases at one time
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Compare placebo control to double-blind control
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In placebo, the experimenters know which group is receiving pretend but in double-blind the experimenters don't know
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What is comparative treatment research?
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Test different treatments and compare outcomes
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What is a single case experimental design?
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One person is put into several conditions.
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What is withdrawal design?
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Give treatment, stop and measure if returns
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What are multiple baselines?
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Start interventions at different times to rule out other possibilities
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What is an endophenotype?
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The gene causing the disorder
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Who is the proband in a family?
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The family member with the trait
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What is genetic linkage analysis?
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In family with predominant disorder. Look if other genes carried and from this infer that disorder gene could be nearby
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What is association strategy?
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Compare people with disorder/genetic markers to those without. If more people with markers have disorder maybe gene on markers
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What is a good test of research?
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Replicability
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What is a major ethical rule in research?
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Informed consent
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What does the REB ensure?
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Adequate care of participants
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True or false: A child never has to give informed consent. Only their parents do.
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False. Children after age 7 need to give informed consent
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