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Polit and Beck

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Across
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The use of multiple methods to collect and interpret data about a phenomenon to converge on an accurate representation of reality
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A device that assigns a numeric score to people along a continuum.
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_______is an alternative in which only people who are similar with respect to confounding variables are included.
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The best possible design to reveal cause-and-effect relationships is:_______
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When every participant has an equal chance of being included in any group it is known as:
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The study in which implementation and testing of an intervention in the absence of randomization is known
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_____sampling involves random selection of elements from a population
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One strength of a quasi-experiment is their:
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The entire group of interest is the ____
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The degree to which an instrument is measuring the construct it purports to measure
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Mutually exclusive segments of a population based on a specific characteristic
Down
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In _______designs, data are collected at one point in time
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_____sampling entails selecting the most available people as participants
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Designs which involve collecting data multiple times over an extended time are called?
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When researchers do not intervene by controlling the independent variable it is known as :
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A group of participants whose performance on an outcome is used to evaluate the performance of the experimental group is a _______(2words)
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A randomized clinical trial is a ______experiment
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A subset of population elements
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The extent to which scores are free from measurement error
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______validity is the extent to which it can be inferred that the independent variable is causing the outcome