Term | Definition |
Descriptive VS Inferential | The enumeration, organization & depiction of data that has been.
Using information from the sample to say something about entire population. |
Variables, Constructs, Constants | A characteristic researchers collect data on. Usually used to infer constructs.
A complex abstract concept that cannot be directly observed, ie: creativity, intelligence
Constants = no variation. A characteristic that is fixed for entire sample,ie: male |
Qualitative VS Quantitative | Subjective,ie:hot weather VS Objective,ie: 90F |
Independent VS Dependent | Independent: the predictor, presume cause of outcomes.
Dependent:what you trying to predict, outcomes. |
Discrete VS Continuous | Discrete: whole number 1,2,3
Continuous: fractions 11.5 |
Levels of Measurements:
Nominal, Ordinal, Interval, Ratio
In practice: categorical, interval & ratio used most. | Nominal:assigned # to facilitate analyses,NO actual value,ie:male=0,female=1
Ordinal:represent rank
Interval:represent absolute# with equally spaced unit between numbers.NO absolute zero.0 Temp=still has temp.ie:Temp,clock
Ratio:like interval w/ abso 0 |