RT Book, Section
A1 Portney, Leslie G.
SR Print(0)
ID 1186212401
T1 Design Validity
T2 Foundations of Clinical Research: Applications to Evidence-Based Practice, 4e
YR 2020
FD 2020
PB F. A. Davis Company
PP New York, NY
SN 9780803661134
LK fadavispt.mhmedical.com/content.aspx?aid=1186212401
RD 2024/04/18
AB Research  designs  are  intended  to  provide  structure  that  allows  for  logical  conclusions  about  the  relationship  between  independent  and  dependent  variables.  The  investigator  must  have  confidence  that  extraneous  factors  have  not  influenced  the  outcome.  Even  with  a  design  that  fulfills  the  requirements  of  an  experiment,  such  as  a  randomized  controlled  trial  (RCT),  researchers  must  be  vigilant  regarding  many  potential  sources  of  confounding  that  can  obscure  the  effects  of  an  intervention.  Confounders  may  be  extrinsic  factors  that  emerge  from  the  environment  and  the  research  situation,  or  they  may  be  intrinsic  factors  that  represent  personal  characteristics  of  the  subjects  of  the  study.