TY  - BOOK
AU  - Cohen Louis; Manion Lawrence; orrison Keith
AU  - Cohen Louis; Manion Lawrence; orrison Keith
TI  - Research methods in education
SN  - 9780415583367 (pbk)
U1  - B:(T):f, Q1-;2 
PY  - 2011///
CY  - New York       
PB  - Routledge      
KW  -  Action research
KW  -  Social research
KW  -  Validity and reliability
KW  - Educational research
N1  - Bibliography 711-752p.; Index 753-758p.; Reprint 2015
ER  -