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Research 202 Ch4
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Terms in this set (25)
To have a wider applicability, your sample should be a random selection, called a __________, from a definable population.
probability sample
__________ refers to the consistency of measurement.
Reliability
__________ is used most often when we want to create very representative samples based on known characteristics.
Stratified random sampling
__________ refers to the degree to which two measures of the same construct correlate to each other.
Convergent validity
__________ is the primary way we get our samples to mimic the population from which the samples were drawn.
Random sampling
"There will be a difference between male and female pilots-in-training on the Rey-Osterrieth Complex Figures Test." Is an example of a(n) __________.
alternative hypothesis
__________ lack some of the research virtues of random samples, thus putting constraints on your procedures and findings.
Nonprobability samples
"There will be no difference between male and female pilots-in-training on the Rey-Osterrieth Complex Figures Test." is an example of a(n) __________.
null hypothesis
__________ are categorical variables with more than two levels or categories .
Polytomies
__________ is where every potential participant has the same chance of being selected each and every time a selection is made.
True random sampling
All of the following are characteristics of a good research question, except
Multifaceted
__________ refers to the perception that a test measures what it is intended to measure.
Content validity
The further away you get from __________, the greater the compromise you make with your data.
true random sampling
__________ refers to the degree to which a measure represents all aspects of a given construct.
Content validity
__________ refers to the degree to which concepts or measurements that are not supposed to be related are unrelated.
Discriminant validity
As you review the literature on a given topic, you are looking for
what is known about the topic, what is unknown about the topic, what is suspected but not verified about the topic
All of the above
By randomly sampling from a very large population we should end up with a sample that has __________ percentage of specific characteristics when compared to the population the sample came from.
about the same
To move your research question from a curiosity into something you can address in a study you must do which of the following?
Choose your variables,Determine how to assess the variables, Identify measures that quantify the variables
All of the above
The primary purpose of random sampling is to give us a cross-section in the final __________ of those characteristics within the __________ that could have an impact on whatever it is that we are measuring or observing.
sample, population
We use random sampling to control for __________.
extraneous variables
In research, __________ is a statement of the likelihood that our research findings are significant (meaningful) as opposed to nonsignificant (not meaningful).
probability
In __________ you obtain a sample through a referral process.
Snowball sampling
The goal of research is to be able to apply findings beyond your sample, called __________.
extrapolation
In __________ you get whatever participants happen to be handy and willing to participate.
Convenience sampling
__________ distributes potentially important and confounding variables evenly and normally across your sample, thus mimicking the distribution of those variables in the population, making your sample representative of the population.
Random sampling
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