parameter Mathematically, parameter is a constant in an equation that defines the form of the curve; in psychology, it is a constant that defines the curve of a psychological function
Parametric statistics Parametric statistics which statistics that deal with a normal distribution.
Nonparametic statistics Nonparametic statistics which statistical methods that may be used when the data do not conform to a normal distribution, i.e. most data in studies of human behaviour.
Paramecium Paramecium is a protozoan ciliate having cilia over the entire cell.