TY  - CHAP
M1  - Book, Section
TI  - Comparing More than Two Means: Analysis of Variance
A1  - Portney, Leslie G.
A1  - Watkins, Mary P.
PY  - 2017
T2  - Foundations of Clinical Research: Applications to Practice, 3e
AB  - As  knowledge  and  clinical  theory  have  developed,  clinical  researchers  have  proposed  more  complex  research  questions,  necessitating  the  use  of  elaborate  multilevel  and  multifactor  experimental  designs.  The  analysis  of  variance  (ANOVA)  is  a  powerful  analytic  tool  for  analyzing  such  designs,  where  three  or  more  conditions  or  groups  are  compared.  The  analysis  of  variance  is  used  to  determine  if  the  observed  differences  among  a  set  of  means  are  greater  than  would  be  expected  by  chance  alone.  The  ANOVA  is  based  on  the  F  statistic,  which  is  similar  to  t  in  that  it  is  a  ratio  of  between-groups  treatment  effects  to  within-group  variability.  The  test  can  be  applied  to  independent  groups  or  repeated  measures  designs.∗  
SN  - 
PB  - McGraw-Hill Education
CY  - New York, NY
Y2  - 2024/04/19
UR  - fadavispt.mhmedical.com/content.aspx?aid=1138252176
ER  -