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19 Cards in this Set
- Front
- Back
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institutional review board
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the orgn. tht carris out the study must have this which reviews all planned studies in advance in order to protect the subjects from possible harm
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informed consent
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all individuals who are subjects in a study must give this before data are collected
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confidential
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all individual data must be kept this; only statistical summaries for groups are made public
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anonymity
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subjects/ their names are not known even to the director of the study
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measure
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a property of a person or thing when we assign a number to represent the property
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instrument
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use this to make a measurement
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variable
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the result of a measurement is a numerical this that takes different values for people or things that differ in whatever we are measuring
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valid
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a variable is a this measure of a property if it is relevant or appropriate as a representation of that property
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rate
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a fraction, proportion, or %
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predictive validity
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a measurement of a property has this if it can be used to predict success on tasks that are related to the property measured
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bias
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a measurement process has this if it systematically tends to overstate or understate the true value of the property it measures
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random error
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a measurement process that has this if repreated measurements on the same individual give different results
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reliable
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if the random error is small, then the measurement is this
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average
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the this of several repeated measurements of the same individual is more reliable (less variable) thana single measurement
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inconsistencies
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numbers that don't agree as they should
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implausible
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numbers that are surprisingly large or small compared to the numbers that you know are rt
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hidden agenda
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choosing carefully which numbers/information to report or working hard to squeeze the numbers into a shape they prefer
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percent increase
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amount of change/starting value
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percent decrease
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% change=amount change/starting value
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