Dawn Dowding|Jacqueline Merrill|Nicole Onorato|Yolanda Barrón|Robert J. Rosati|David Russell
The impact of home care nurses’ numeracy and graph literacy on comprehension of visual display information: implications for dashboard design
Columbia University|Visiting Nurse Service of New York|Columbia University|Visiting Nurse Service of New York|Visiting Nurse Service of New York|Virtua Health|Visiting Nurse Service of New York
abstract objective explore home care nurses numeracy graph literacy relationship comprehension visualized data materials methods multifactorial experimental design using online survey software nurses recruited 2 medicarecertified home health agencies numeracy graph literacy measured using validated scales nurses randomized 1 4 experimental conditions condition displayed data 1 4 quality indicators 1 4 different visualized formats bar graph line graph spider graph table mixed linear model measured impact numeracy graph literacy display format data understanding results 195 nurses took part study slightly numerate graph literate general population overall nurses understood information presented bar graphs easily 88 correct followed tables 81 correct line graphs 77 correct spider graphs 41 correct individuals low numeracy low graph literacy poorer comprehension information displayed across formats high graph literacy appeared enhance comprehension data regardless numeracy capabilities discussion conclusion clinical dashboards increasingly used provide information clinicians visualized format assumption visual display reduces cognitive workload results study suggest nurses comprehension visualized information influenced numeracy graph literacy display format data individual differences numeracy graph literacy skills need taken account designing dashboard technology