TY  - BOOK
AU  - Heiman,Gary W.
TI  - Understanding research methods and statistics: an integrated introduction for psychology 
SN  - 0618043047
U1  - 150.72  
PY  - 2001///
CY  - Boston
PB  - Houghton Mifflin Company 
KW  - Psychology--Research--Methodology
KW  - Psychometrics
ER  -