AHIMA Certified Health Data Analyst

What is the primary purpose of healthcare data analytics?

• ATo replace clinical judgment entirely
• BTo transform raw healthcare data into actionable insights for improving quality, outcomes…
• CTo eliminate the need for electronic health records
• DTo reduce the number of healthcare providers

Which type of analytics answers the question 'What happened?'

• APredictive analytics
• BDescriptive analytics
• CPrescriptive analytics
• DCognitive analytics

What does data governance encompass in a healthcare organization?

• AOnly data storage and backup procedures
• BThe framework of policies, procedures, standards, and accountability structures that ensu…
• COnly HIPAA compliance
• DOnly database administration

Which statistical measure is calculated as the sum of all values divided by the number of observations?

• AStandard deviation
• BMean (average)
• CRange
• DVariance

What is a data dictionary in the context of healthcare data management?

• AA thesaurus of medical terminology
• BA comprehensive catalog documenting data elements, their definitions, formats, allowable…
• CA patient directory
• DA database backup log

What is the difference between structured and unstructured data in healthcare?

• AThere is no meaningful difference
• BStructured data follows a predefined format (coded fields, numbers) while unstructured da…
• CStructured data is only found in paper records
• DUnstructured data is always more accurate

Which visualization type is most appropriate for showing trends over time?

• APie chart
• BLine chart
• CBar chart
• DScatter plot

What is the purpose of a p-value in statistical hypothesis testing?

• AIt measures the size of the effect
• BIt represents the probability of observing results as extreme as the data if the null hyp…
• CIt determines the sample size needed
• DIt measures data quality

What is an Enterprise Master Patient Index (EMPI)?

• AA list of all physicians in an organization
• BA system that maintains a single, consistent identifier for each patient across all syste…
• CA coding system for diagnoses
• DA financial reporting tool

Which predictive modeling technique uses labeled training data to classify outcomes into predefined categories?

• AUnsupervised clustering
• BSupervised classification (e.g., logistic regression, decision trees, random forests)
• CPrincipal component analysis
• DMarket basket analysis

What is the purpose of data profiling in healthcare analytics?

• ATo profile individual patients for marketing
• BTo examine source data for completeness, accuracy, consistency, and anomalies before anal…
• CTo create patient demographic profiles
• DTo generate financial reports

What clinical data standard uses LOINC codes?

• ADiagnosis coding
• BLaboratory and clinical observation identification
• CProcedure coding
• DDrug classification

Which measure of spread is most resistant to outliers?

• ARange
• BStandard deviation
• CInterquartile range (IQR)
• DVariance

What is the purpose of an ETL (Extract, Transform, Load) process in healthcare data warehousing?

• ATo delete old patient records
• BTo extract data from source systems, transform it into a consistent format, and load it i…
• CTo encrypt patient data
• DTo create clinical documentation

What is the CMS Hospital Compare program?

• AA website for comparing hospital prices only
• BA public reporting initiative that displays quality measures, patient experience scores,…
• CA hospital ranking system based on revenue
• DAn internal CMS auditing tool

What type of statistical test is used to determine if there is a significant difference between the means of two independent groups?

• AChi-square test
• BIndependent samples t-test
• CPearson correlation
• DANOVA

What is a clinical data repository (CDR)?

• AA physical archive of paper medical records
• BA real-time or near-real-time aggregated database of patient clinical data from multiple…
• CA backup copy of the EHR
• DA list of clinical trials

Which healthcare quality measure type assesses whether evidence-based clinical practices were followed?

• AOutcome measures
• BProcess measures
• CStructural measures
• DBalancing measures

What is the difference between data mining and traditional querying?

• AThere is no difference
• BTraditional querying tests predefined hypotheses, while data mining discovers hidden patt…
• CData mining only works with small datasets
• DTraditional querying is always more accurate

What is the HIPAA Minimum Necessary Standard?

• AThe minimum data that must be collected for each patient
• BThe requirement to limit access to and disclosure of PHI to the minimum amount necessary…
• CThe minimum number of security measures required
• DThe minimum storage time for health records

What is a box plot (box-and-whisker plot) used for in data visualization?

• AShowing proportions of a whole
• BDisplaying the distribution of data through quartiles, median, and outliers
• CShowing trends over time
• DComparing categories using colors

What is logistic regression used for in healthcare analytics?

• APredicting continuous numerical outcomes
• BPredicting the probability of a binary outcome (e.g., readmission yes/no, mortality yes/n…
• CCalculating averages
• DSorting data alphabetically

What is risk adjustment in healthcare quality measurement?

• AAdjusting insurance premiums based on claims history
• BA statistical method that accounts for patient severity, comorbidities, and demographics…
• CAdjusting medication dosages based on weight
• DModifying clinical protocols based on risk

What does the SNOMED CT terminology system provide for clinical data?

• AFinancial coding for billing
• BA comprehensive, multilingual clinical terminology for electronic health records, coverin…
• CLaboratory test identifiers only
• DDrug classification codes only

What is a dashboard in healthcare analytics?

• AA decorative display for the lobby
• BAn interactive visual display that consolidates key performance indicators (KPIs) and met…
• CA printed monthly report
• DA database query tool

What is the purpose of a control chart (statistical process control chart) in healthcare quality?

• ATo control access to patient data
• BTo monitor process variation over time and distinguish between common cause (expected) an…
• CTo chart patient vital signs
• DTo control medication inventory

What is de-identification of protected health information (PHI) under HIPAA?

• AEncrypting data during transmission
• BRemoving or transforming specified identifiers so that remaining data cannot reasonably i…
• CDeleting all patient records after treatment
• DRestricting database access to administrators only

What is population health analytics?

• ATracking the population of a city
• BThe analysis of health data across defined populations to identify health trends, risk fa…
• CCounting the number of patients in a hospital
• DCensus data analysis

Which correlation coefficient measures the strength and direction of a linear relationship between two continuous variables?

• AChi-square statistic
• BPearson correlation coefficient (r)
• CF-statistic
• DZ-score

What is the purpose of data validation rules in a healthcare database?

• ATo slow down data entry
• BTo ensure that entered data meets predefined criteria for format, range, consistency, and…
• CTo encrypt sensitive data
• DTo generate automated reports

What is an ICD-10-CM code used for in healthcare data?

• AIdentifying laboratory tests
• BClassifying diagnoses for clinical documentation, billing, and analytics
• CIdentifying medications
• DTracking medical devices

Which type of analytics uses historical data and algorithms to forecast future outcomes?

• ADescriptive analytics
• BPredictive analytics
• CDiagnostic analytics
• DRetrospective analytics

What is a funnel plot used for in healthcare quality comparison?

• AShowing patient flow through a hospital
• BComparing provider performance against benchmarks while accounting for sample size differ…
• CTracking patient volumes over time
• DDisplaying financial trends

What does ANOVA (Analysis of Variance) test?

• AThe correlation between two variables
• BWhether there are statistically significant differences in means among three or more grou…
• CWhether data follows a normal distribution
• DThe proportion of variance explained by a model

What is the Health Level Seven (HL7) standard used for?

• AClassifying diseases
• BEnabling electronic exchange of clinical and administrative health data between systems
• CCoding procedures
• DMeasuring patient satisfaction

What is a data warehouse star schema?

• AA data backup configuration
• BA dimensional modeling design with a central fact table surrounded by dimension tables, o…
• CA network security architecture
• DA data encryption method