All 4 faces pain scales were found to be adequately supported by psychometric data .
When given a choice between faces scales , children preferred the WBFPRS .
Confounding of pain intensity with affect caused by use of smiling and crying anchor faces is a disadvantage of the WBFPRS .
: For clinical use , we found no grounds to switch from 1 faces scale to another when 1 of the scales is in use .
CONTEXT : Numerous faces scales have been developed for the measurement of  pain intensity in children .
It remains unclear whether any one of the faces scales is better for a particular purpose with regard to validity , reliability , feasibility , and preference .
OBJECTIVES : To summarize and systematic ally review faces pain scales most commonly used to obtain self-report of pain intensity in children for evaluation of reliability and validity and to compare the scales for preference and utility .
The alternate forms reliability of the Oucher pain scale.
The purpose of this study was to determine the adequacy of the alternate forms reliability of three versions of the Oucher pain scale . Because the original large-sized posters were unwieldy for use by nurses with children in clinical setting s , it became necessary to reduce it in size . To determine whether the result ing tools were psychometrically equivalent to the original versions of the Oucher , this study was undertaken . In a group of 3- to 12-year-old children who underwent surgical or dental procedures ( n = 137 ) , scores were obtained after the procedure on small and large versions of the Oucher . The order of presentation of the two different Ouchers was r and omized . Findings revealed that correlation coefficients between the scores provided for the small and large versions of the Oucher were strong , positive , and significant for the Caucasian , African-American , and Hispanic versions in 3- to 12-year-old children . These results provided evidence of the adequacy of the alternate forms reliability of these scales
All 4 faces pain scales were found to be adequately supported by psychometric data .
When given a choice between faces scales , children preferred the WBFPRS .
Confounding of pain intensity with affect caused by use of smiling and crying anchor faces is a disadvantage of the WBFPRS .
: For clinical use , we found no grounds to switch from 1 faces scale to another when 1 of the scales is in use .
CONTEXT : Numerous faces scales have been developed for the measurement of  pain intensity in children .
It remains unclear whether any one of the faces scales is better for a particular purpose with regard to validity , reliability , feasibility , and preference .
OBJECTIVES : To summarize and systematic ally review faces pain scales most commonly used to obtain self-report of pain intensity in children for evaluation of reliability and validity and to compare the scales for preference and utility .