CHDA EXAM PREP LATEST UPDATE 2025 ACTUAL

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CHDA EXAM PREP LATEST UPDATE 2025 ACTUAL

EXAM| COMPLETE 300 ACCURATE QUESTIONS AND

VERIFIED ANSWERS/ ALREADY GRADED A+|

CERTIFIED HEALTH DATA ANALYST EXAM PREP

2025 (BRAND NEW!!)

Fifty percent of patients treated at our facilities have Medicare as their primary payer. This is an example of what type of information?

• Patient-specific
• Expert knowledge
• Comparative
• Aggregate - ANSWER - d. Aggregate

Your chief medical officer has requested that you track patient satisfaction over time and in a way that attempts to separate routine variation from true underlying changes over time. The best tool to select from the options below is a(n) _____.

• Affinity diagram
• Histogram
• Statistical process control chart
• Stem and leaf diagram - ANSWER - Statistical process control chart

A researcher would like to test the null hypothesis that the lengths of stay at two hospitals are equal. What statistical test should the researcher use in this situation? 1 / 4

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• Tukey's HSD
• t-test for means
• ANOVA
• Z-test for proportions - ANSWER - b. t-test for means

We want to compare the average weight of patients before and after a specialty diet is administered. We expect the weight to decrease after administration of the diet. Which of the following tests should be conducted to determine if the average weight for each patient is less at the conclusion of the diet?

• Paired t-test
• One-sample t-test
• t-test for two independent sample means
• Z-test for comparing two population proportions - ANSWER - a.

Paired t-test

When a data analyst develops a sample selection involving the choice of every fourth patient from each clinic schedule for each physician during the course of a three month period, this sampling technique being used by the analyst is called which of the following?

• Stratified random sampling
• Random sampling
• Quota sampling
• Systematic random sampling - ANSWER - Systematic random

sampling

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pg. 3 The mean is an appropriate statistic to use to measure which type of data?

• Qualitative
• Nominal
• Ordinal
• Ratio - ANSWER - ratio

If a health plan analyst wanted to determine if the readmissions rates for two hospitals were statistically different, which hypothesis test should be used?

• Chi square
• Two-sample Z-test for proportions
• t-test
• One-sample Z-test for proportion - ANSWER - b. Two-sample Z-test

for proportions

Which data collection program is the basis for the CMS value-based purchasing program?

• Leapfrog
• HEDIS
• Hospital Compare
• HCU - ANSWER - Hospital Compare
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pg. 4 If an analyst is studying the wait times at a clinic and the only list of patients available is hard copy, which sampling technique is the easiest to use?

• Simple random sampling
• Systematic sampling
• Cluster sampling
• Stratified sampling - ANSWER - Systematic sampling

Which national database was created to collect information on the legal actions (both civil and criminal) taken against licensed healthcare providers?

• Healthcare Integrity and Protection Data Bank
• Medicare Protection Database
• National Practitioner Data Bank
• Healthcare Safety Database - ANSWER - Healthcare Integrity and

Protection Data Bank

RVUs are used as the basis of Medicare payment for which type of provider?

• Hospital inpatient
• Hospital outpatient
• Physician
• Laboratory - ANSWER - physician
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