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Research - Coggle Diagram
Research
Statistics
Standard deviation
indication of the possible deviations from the mean
variance
how values are dispersed around the mean
larger variance = larger dispersion of scores
inferential statistics
numerical values that enable one to reach conclusions that extend beyond the immediate data alone
generated by quantitative research designs
t-test
Assess whether the means of 2 groups are statistically different from each other
Analysis of Variance (ANOVA)
tests the difference among 3 or more groups
Pearson's R correlation
Tests the relationship between 2 variables
Probability
likelihood of an event occurring
Lies between 0-1
impossible event = 0
certain event = 1
P-value
levels of significance
describes probablity of particular result occurring by chance alone
PICO
P = patient, population, problem
I = intervention
C = comparison
O = Outcome
Terms
Internal validity
the independent variable (treatment) caused a change in the dependent variable (outcome)
External validity
When the sample is representative of the population
results can be generalized