Table 2. Example of Composite Frequency Matrix

User's Guide: Hospital Survey on Patient Safety Culture

Items in "Overall Perceptions of Safety"1. For positively worded items, count the number of "Strongly Agree" or "Agree" responses.2. For reverse worded items, count the number of "Strongly Disagree" or "Disagree" responses.3. Total number of "positive" responses4. Total number of responses to the item (excluding missing responses)
Item A15—positively worded "Patient safety is never sacrificed to get more work done."120NA*120260
Item A18—positively worded "Our procedures and systems are good at preventing errors from happening."130NA*130250
Item A10—reverse worded "It is just by chance that more serious mistakes don't happen around here."NA*110110240
Item A17——reverse worded "We have patient safety problems in this unit."NA*140140250
Totals:5001,000

*Not Applicable

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Page last reviewed September 2004
Internet Citation: Table 2. Example of Composite Frequency Matrix: User's Guide: Hospital Survey on Patient Safety Culture. September 2004. Agency for Healthcare Research and Quality, Rockville, MD. http://www.ahrq.gov/professionals/quality-patient-safety/patientsafetyculture/hospital/userguide/hosptab2.html