RT Book, Section
A1 Portney, Leslie G.
A1 Watkins, Mary P.
SR Print(0)
ID 1138250669
T1 Validity in Experimental Design
T2 Foundations of Clinical Research: Applications to Practice, 3e
YR 2017
FD 2017
PB McGraw-Hill Education
PP New York, NY
SN 9780803646575
LK fadavispt.mhmedical.com/content.aspx?aid=1138250669
RD 2024/04/19
AB The  most  rigorous  form  of  scientific  investigation  for  testing  hypotheses  is  the  experiment.  Experiments  are  based  on  a  logical  structure,  or  design,  within  which  the  investigator  systematically  introduces  changes  into  natural  phenomena  and  then  observes  the  consequences  of  those  changes.  The  purpose  of  an  experiment  is  to  support  a  cause-and-effect  relationship  between  a  particular  action  or  condition  (the  independent  variable)  and  an  observed  response  (the  dependent  variable).