Exam 2 Fallacys Flashcards
Operational
Explicit way the concept is being defines or measured for the purpose of our study
Independent variable
Cause
- observed or manipulated
Dependent Variable
Effect
- behavior we think are interested in studying
Validity
Extent to which a measurement of a variable reflects the theatrical meaning of that variable
Reliability
Consistency
- or stability of the measurement
- need have consisting, and if not constant not valid
Sensitivity
Measurement sensitive enough to reflect small changes we might expect to find the dependent variable
Population
One wishes to study
Sample
- the subset of the population that is actually studied.
- The findings from the sample are generalized to the larger population.
Subjects
Participants in a study or experiment
Random sample
Every member of the population has an equal chance of being selected for the sample
Representative sample
Sample has characteristics similar tot he population on important variables that could have an effect on outcome measured
Biased sample
Not representative of the population
Convenience sample
Get who you can get
Self select
Variability
Difference in responses we obtain
Positive correlation
Releated such as one increases the other also increases
