RT Book, Section
A1 Norkin, Cynthia C.
A1 White, D. Joyce
SR Print(0)
ID 1137673594
T1 Validity and Reliability
T2 Measurement of Joint Motion: A Guide to Goniometry, 4e
YR 2009
FD 2009
PB McGraw-Hill Education
PP New York, NY
SN 9780803620667
LK fadavispt.mhmedical.com/content.aspx?aid=1137673594
RD 2024/04/16
AB For  goniometry  to  provide  meaningful  information,  measurements  must  be  valid  and  reliable.  Currier1  states  that  validity  is  "the  degree  to  which  an  instrument  measures  what  it  is  purported  to  measure;  the  extent  to  which  it  fulfills  its  purpose."  Stated  in  another  way,  the  validity  of  a  measurement  refers  to  how  well  the  measurement  represents  the  true  value  of  the  variable  of  interest.  The  purpose  of  goniometry  is  to  measure  the  angle  created  at  a  joint  by  the  adjacent  bones  of  the  body.  Therefore,  a  valid  goniometric  measurement  is  one  that  truly  represents  the  actual  joint  angle.  The  joint  angle  is  used  to  describe  a  specific  joint  position  or,  if  a  beginning  and  ending  joint  position  are  compared,  a  range  of  motion  (ROM).