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Polit and Beck

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