What are the odds? Flashcards
addresses the issue of how accurately a sample represents a population
inferential statistics
naturally occurring difference between a sample statistic and the population parameter
sampling error
what are the two primary factors that influence the outcome of a hypothesis test
the number of scores in the sample, and the size of the variance
type one error vs type two error
type one = false positive, type two = false negative
a good hypothesis is: (4)
- logical
- testable
- refutable
- positive
what does cohens d measure
effect size
what are the three data structures
- descriptive research
- correlational
- experimental, non-experimental, and quasi experimental
one group of participants with one variable measured per participant describes which research data structure
descriptive research
one group of partipants with two or more variables measured for each participant describes which research data structure
correlational research
two or more groups of scores with each score a measurement of the same variable desccribes which research data structure
experimental, nonexperiemental, and quasi experimental
what is cohens kappa used for
its a measure of agreement that corrects for chance