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12 Cards in this Set
- Front
- Back
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open ended
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questions that allow respondents to answer in as much detail as they feel appropriate
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close ended questions
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requires respondant to select among a fixed number of options as in a multiple choice exam
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self-report methods
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questionnaires gather data from a large number of people
easy to administer cheap and cost effective |
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sampling
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people are selcted from teh population as members of the sample
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observer bias
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systematic errors in observation that occur due to the observer's expectations
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sampling bias
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the process by which people are selected from the population to be members of the sample and are not a random sampling
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expectancy bias
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the observercan lead to actual changes in the behavior of the people or animals being observed
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random sampling
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each member of the population has an equal chance of being chosen to participate
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stroop test
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mix the colors and the words
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PET scan
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developed in teh late 80s; computer-aided reconstruction of the brain's metabolic activity through the use of a relatively harmless radioactive substance injected into the bloodstream; as brain performs a mental task, blood flow increases to the most active regions of teh brain adn emit radiation
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MRI
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newest most powerul of imaging techniqeust. relies on the protons to create a magnetic field. waves are sent through and release a photo
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fMRI
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makes the brain's blood flow to a map its actually scanning the participant during performance of several tasks
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