CPHQ Domain 4: Health Data Analytics

A healthcare analyst is assessing a dataset with the distribution of patient ages across several facilities. If the data exhibits a strong positive skew, which of the following is true?

When analyzing the effectiveness of a new drug, a researcher notices that the confidence interval for the drug's efficacy does not include the null value. What does this indicate about the drug's effectiveness?

In a regression analysis of hospital readmission rates, an analyst finds a p-value of 0.02 for a specific predictor. What does this p-value suggest?

When reviewing a quality improvement initiative's impact on patient satisfaction, a data analyst finds a Type I error. What does this suggest about the initiative's reported effectiveness?

A healthcare quality analyst is determining which variables significantly affect patient outcomes. When considering multiple predictors, what technique should the analyst use to avoid collinearity issues?

A hospital is reviewing data on patient discharge times and wants to identify outliers. Which statistical method is most appropriate to detect outliers in this context?

A healthcare analyst is examining the relationship between a categorical variable and a continuous variable. Which statistical test should be used to evaluate this relationship?

A health quality analyst wants to compare patient satisfaction scores before and after implementing a new program within the same group of patients. Which statistical test is most appropriate for this comparison?

A healthcare analyst is conducting a time-series analysis on patient admission rates. What technique can the analyst use to identify trends or patterns over time?

A quality improvement team wants to determine if there's a significant relationship between patient age and hospital readmission rates. What statistical test would best help answer this question?

A healthcare quality analyst wants to predict patient mortality rates based on several predictor variables, including age, comorbidities, and gender. What statistical model is best suited for this analysis?

A hospital is examining the relationship between patient satisfaction and the number of nurse-patient interactions. The data is non-normally distributed, with outliers present. Which statistical test is most appropriate to analyze this data?

A healthcare quality analyst is analyzing data to determine the frequency of readmissions among different age groups. What statistical test would best determine if there's a significant difference among the groups?

A healthcare system wants to identify the most common types of errors in medical records. What data analysis technique is most appropriate to categorize these errors and determine their frequency?

A healthcare quality analyst is studying the correlation between patient satisfaction scores and healthcare costs. The analyst finds a correlation coefficient of -0.65. What does this result suggest?

A healthcare quality team wants to assess the effect of a new training program on staff performance over time. They plan to take measurements at regular intervals. What statistical technique is most suitable to analyze the data collected?

A hospital's quality improvement team is reviewing patient satisfaction data to determine if there's a significant relationship between hospital location and patient satisfaction. What statistical test should be used to determine this relationship?

A healthcare analyst wants to determine if the distribution of patient lengths of stay in a hospital is normal. What statistical test is most appropriate to test for normality?

A healthcare quality team is comparing patient satisfaction scores across three different hospitals. Which statistical test is most appropriate for this analysis?

A healthcare analyst wants to identify seasonal patterns in emergency room visits. Which statistical technique is most appropriate for this analysis?

A healthcare quality analyst wants to understand if there's a statistically significant difference in medication errors before and after the implementation of a new electronic health record system. What statistical test is most suitable for this analysis?

A healthcare system wants to evaluate the impact of a patient-centered care initiative on patient satisfaction. To identify trends over several years, which statistical technique should be used?

A healthcare analyst is studying the effect of a particular treatment on patient recovery time. To determine if there's a significant effect compared to a control group, which statistical test is most appropriate?

A healthcare quality analyst wants to evaluate the distribution of patient ages in a hospital to determine if there's a significant difference among multiple departments. Which statistical test should be used?

A healthcare quality team wants to identify the most common diagnosis codes used in a hospital over the past year. Which data analysis technique is most appropriate to categorize these codes and determine their frequency?