USA EIP Final Review, Exam terms. 1005 verified questions and answers, 100% verified.
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EIP
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EIP
USA EIP Final Review, Exam terms. 1005 verified questions and answers, 100% verified.
Internal Validity - the control of extraneous factors
- has the least amount of bias and error
- everything is accounted for
External Validity - Refers to how applicable or generalizable the results a...
100 verified internal validity the control of extraneous factors has the least amount of bias and error everything is
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USA EIP Final Review, Exam terms. 1005
verified questions and answers, 100%
verified.
Internal Validity - ✔✔the control of extraneous factors
- has the least amount of bias and error
- everything is accounted for
External Validity - ✔✔Refers to how applicable or generalizable the results are to a certain population
- population= stroke pt's, PT, OT, etc.
T/F: the more internally valid a study, the least externally valid it is - ✔✔True
Threats to Validity - Attrition/Mortality - ✔✔Subjects leave the study before finishing
- this can increase bias by skewing results
Threats to Validity - Subject Selection/Assignment - ✔✔Sample size must be a valid representation of a
population in order to generalize results
Threats to Validity - Other Forms of Bias - ✔✔- Competition
- The Hawthorn Effect: when someone acts differently b/c they're being watched
- Researcher Influence
- Binding
, Statistics/Data Analysis - ✔✔- Statistics give researchers a tool in which to explain, describe and predict
future results
- The type of statistical test depends on the type and amount of data collected
Commonly Used Descriptive Statistics - ✔✔1. T-Test
2. ANOVA
3. Regression
T-Test - ✔✔Compares a mean value to either a theoretical mean or another mean
ANOVA (Analysis of Variance) - ✔✔Compares groups to each other
- it is trying to see how far the data skews away from the mean
- used with more than 2 groups
Regression - ✔✔Measures how the independent variable effects the dependent variable at several
points
Statistical Significance - ✔✔A statistical statement of how likely it is that an obtained result occurred by
chance
"P-Value"
Confidence Interval - ✔✔A range of values so defined that there is a specified probability that the value
of a parameter lies within it.
Independent Variable - ✔✔The variable that is CHANGED or controlled in a scientific experiment to test
the effects on the dependent variable
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