Notes Table 1. Example of Computing Item and Composite Percent Positive Scores

2011

Items Measuring Overall Perceptions of Patient SafetyFor Positively Worded Items, Number of "Strongly Agree" or "Agree" ResponsesFor Negatively Worded Items, Number of "Strongly Disagree" or "Disagree" ResponsesTotal Number of Responses to the ItemPercent Positive Response on Item
Item A15-positively worded
"Patient safety is never sacrificed to get more work done"120NA*260120/260=46%
Item A18-positively worded
"Our procedures and systems are good at preventing errors from happening"130NA*250130/250=52%
Item A10-negatively worded
"It is just by chance that more serious mistakes don't happen around here"NA*110240110/240=46%
Item A17-negatively worded
"We have patient safety problems in this unit"NA*140250140/250=56%
Composite Score % Positive = (46% + 52% + 46% + 56%) / 4 = 50%

* NA = Not applicable

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Current as of April 2011
Internet Citation: Notes Table 1. Example of Computing Item and Composite Percent Positive Scores: 2011 . April 2011. Agency for Healthcare Research and Quality, Rockville, MD. http://www.ahrq.gov/professionals/quality-patient-safety/patientsafetyculture/hospital/2011/hosp11notestab1.html