FAUL F , ERDFELDER E , LANG A G , et al . G*Power 3: A Flexible Statistical Power Analysis Program for the Social, Behavioral, and Biomedical Sciences [J ] . Behavior Research Methods , 2007 , 39 ( 2 ): 175 - 191 .
COHEN J . Statistical Power Analysis for the Behavioral Sciences [M ] . Amsterdam : Elsevier , 1977
CAMPBELL A , CONVERSE P E , RODGERS W L . The Quality of American Life: Perceptions, Evaluations, and Satisfactions [M ] . New York : Russell Sage Foundation , 1976 .