Random, extrinsic, outlier
Assignable, intrinsic, noise
Random, inlier, identifiable
Assignable, extrinsic, outlier
Eliminate assignable cause of variation
Eliminate random cause of variation
Prioritize cause of variation
Eliminate all cause of variation
A random sample of 20% of annual discharges/ visits per unit
A random sample of 5% of annual discharges/ visits per unit
All discharges /visits in January and July
All discharges /visits of customers with a last name beginning with the letters A-E.
A numerator
A denominator
A prevalence rate
An incidence rate
Frequency distribution
Scatter diagram
Line graph
Histogram
Run chart
Pareto chart
Control chart
Variables, counted, categorized, percentages, means, t test
Counted, categorized, measured, variables, means, t test
Discrete, counted, categorized, percentages, chi-square, whole numbers
Attributes, counted, measured, discrete, chi-square, means
Convenience
Systematic
Stratified
Simple random
6 consecutive ascending data points
7 consecutive descending data points
A zigzag pattern of 10 data points
Data points close to the mean line
Calculate the mean
Define the axis measurements
Identify the parameters
Develop a legend
Mean, median, and mode
Standard deviation, variance and standard error
Grouped data, bell curve and distribution
Correlation, regression and t-test
Quota
Stratified random
Purposive
Sample size
Ethnicity of patients under study
Sources of data
Number of days within the study period
Derived from special cause variation
Actual process measure
Benchmark
None
A reliable graphic presentation
The definition of data elements
A minimum of 20 data elements
Allowance of variance of interpretation
Bar chart
Pareto
Fishbone
Cluster sampling
Continuous sampling
Matched random sampling
Accidental sampling
Opinion are to facts
Fabrications are to designs
Attitudes are to deeds
Actions are to outcomes
Will be found 5% of the time even if the process is in statistical control
Will be found 5% of the time even if the process is out of statistical control
Indicates the presence of a sentinel event
Is a signal for further investigation
Obtaining customer feedback
Assessing compliance to the time-out procedure
Measuring patient falls
Functional testing of laboratory machines.
Reducing variation when the process is table
Increasing variation when the process is stable
Failing to recognize special cause variation when it is present
Falsely identifying special cause variation when none exists
Reduce the sample size
Increase the sample size
Keep the sample size the same
Review the medical record of each ventilated patient until variation is reduced.
1 to 3
3 to 5
8 to 12
15 to 20
Group size
Length of meeting
Opinions of the group
Skill of the moderator
Chi-square.
Multiple regression analysis
Regression analysis
T-test
Random
Volunteer
Pie chart
Scatter plot
work flow
flow chart
Radar (Gap)
Flowchart, cause and effect diagram, scatter diagram
Run chart, table, scatter diagram
Pie chart, prioritization matrix, Pareto chart
Flowchart, cause and effect diagram, check sheet
80% of QM activities are wasted
80% of the problems have 20% of the impact
20% of the problems have 80% of the impact
20% of the costs reap 80% of the benefit
Qualitative
Quantitative
Measured
Opinionated
Collect the data
Determine which statistical test to use
Develop the data collection tool
Formulate the question to be answered
Mean 3 and weight 0.9
Mean 4 and weight 0.8
Mean 5 and weight 0.7
Mean 6 and weight 0.6
Measurement
Observation
Correlation
Interviewing
Probability
Average
Dispersion
Coefficient
Purpose of research
Population Size
Level of confidence desired
Power analysis
calculated from actual process measurements.
calculated by projecting future requirements.
derived from special cause variation.
derived from external regulatory standards.
sampling methodology.
outlier identification.
statistical significance.
benchmarking.
data collected through questionnaires or surveys
claims data obtained from healthcare payors
disease data obtained from disease registries
data collected from the electronic health record
Provide remedial hand hygiene training for the lowest scoring departments.
Recognize the Respiratory Therapy department for its outstanding compliance.
Validate that the Respiratory Therapy results are accurate.
Require departments not achieving at least 95% compliance to develop corrective action plans.
run chart
frequency plot
pie chart
scatter plot
organized by patient age.
adjusted for length of stay.
adjusted for severity of illness.
organized by patient gender.
telephone survey of patients
focus group with patients
written survey of registration staff
interviews with registration staff
consistently yields the same results.
does not change with changes in technology.
is applicable to many groups and settings.
measures what it is intended to measure.