Analysis Plan - ANSWER-A data analysis plan is a roadmap for how you're going to organize and analyze
your survey data -- and it should help you achieve three objectives that relate to the goal you set before
you started your survey.
Bayesian Approach - ANSWER-an advanced mathematical procedure that applies probabilities to
statistical problems. It provides people the tools to update their beliefs in the evidence of new data.
Categorical Variable - ANSWER-Values that are names or labels. The color of a ball or the breed of a dog
would be examples of categorical variables.
Central Tendency - ANSWER-Is the phenomenon of typical values often occurring in the middle of a
distribution. The greater the tendency toward the center, the more likely a distribution is normal in
shape.
Chi-square Test - ANSWER-Determine if an association exists between two categorical variables.
Compares values you observe to expected.
Correlation Coefficient - ANSWER-Measures strength and direction of a linear relationship between 2
variables on a scatter plot.
Looks for not only the relationship, but the magnitude of association. It is not cause and effect, just
relationship.
, Cross-Sectional Research - ANSWER-Also called a prevalence study, it gathers and analyzes data from a
population or subset of a population at a specific point in time or place
Do men or women call out sick to work more?
ANOVA - ANSWER-Analysis of variance test. Used when there are two or more groups to compare.
A group of psychiatric patients are trying three different therapies: counseling, medication, and
biofeedback. You want to see if one therapy is better than others.
Alternative Hypothesis - ANSWER-States that the two groups we are studying are different: this is the
researcher's hypothesis, the alternative model that you want to consider. The burden of proof lies with
the researcher.
Confounding Variable - ANSWER-A variable that obscures the effect of another variable.
Continuous Variable - ANSWER-It is also known as an interval variable. There is a meaningful difference
between variables. For example, a temperature difference between 80* and 90* is the same difference
as between 90* and 100*.
Congrol Group - ANSWER-In a healthcare environment, this group of patients do not receive the
treatment that is being studied.
.
For example, a group of physicians may wish to do a cross-sectional study to see how many of their
patients ages 10-14 are on medication for ADHD.
Dependent Variable - ANSWER-It is what is going to change, or not, as a result of your research.
For example, if you are researching whether or not exercising has an effect on weight gain, 'exercise' is
the independent variable and weight gain is the dependent variable.
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