CHDA TEST REVIEW BOOK TERMS WITH COMPLETE SOLUTIONS
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Course
CHDA
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CHDA
CHDA TEST REVIEW BOOK TERMS WITH COMPLETE SOLUTIONSCHDA TEST REVIEW BOOK TERMS WITH COMPLETE SOLUTIONSCHDA TEST REVIEW BOOK TERMS WITH COMPLETE SOLUTIONSAlpha level - ANSWER-The level of Type I error that is deemed acceptable based on context in statistical hypothesis testing. See Type I error.
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CHDA TEST REVIEW BOOK TERMS
WITH COMPLETE SOLUTIONS
Alpha level - ANSWER-The level of Type I error that is deemed acceptable based on
context in statistical hypothesis testing. See Type I error.
Alternative hypothesis - ANSWER-The complement of the null hypothesis that is to be
tested using the appropriate statistical test. This hypothesis typically requires some
action to be taken.
Ambulatory payment classification (APC) - ANSWER-The payment unit used in the
hospital outpatient prospective payment system (OPPS). The classification is a
resource-based reimbursement system.
Analysis of variance - ANSWER-The statistical tool used to compare more than two
population means. The null hypothesis tests that all of the population means are equal.
Analysis - ANSWER-Reviewing and summarizing data for use in decision making.
Analytic study - ANSWER-A study where the analyst is able to investigate the
relationship between variables.
Confidence interval - ANSWER-An interval that is centered at the sample estimate of a
population value that may be calculated so that it has a preset probability of containing
the population value.
Confidence level - ANSWER-The probability that a confidence interval includes the true
value of a population statistic.
Construct validity - ANSWER-A type of validity that is typically measured for survey and
assessment tools, using instruments designed to measure the constructs or concepts of
satisfaction with a provider's performance.
Content validity - ANSWER-A type of validity that formally assesses whether or not all
components of the metric are necessary to measure the quality.
Auditing - ANSWER-The performance of internal and external reviews to identify
variations from established baselines (for example, review of outpatient coding as
compared with CMS outpatient coding guidelines).
Average daily inpatient census - ANSWER-An amount representing the inpatient
service days for a period divided by the number of days in a period.
, Balanced design - ANSWER-An experimental design where the number of subjects in
each sample are the same for all populations sampled. The term is relevant when
performing an analysis of variance or a two sample t-test.
Bell curve - ANSWER-The shape of the normal distribution. The bell peaks at the
average and slopes down on both sides symmetrically.
Binomial variable - ANSWER-A variable that takes only two values (such as yes or no;
alive or dead). The probability of a yes or no is constant across all of the subjects, and
the outcome of each subject is independent of the others.
Case-control study - ANSWER-A study where the analyst-selected cases are those
units of analysis with the attribute to be studied and the controls are those without the
attribute.
Case Mix Index (CMI) - ANSWER-The average relative weight of all cases treated at a
given facility or by a given physician, which reflects the resource intensity or clinical
severity of a specific group in relation to the other groups in the classification system;
calculated by dividing the sum of the weights of diagnosis-related groups for patients
discharged during a given period by the total number of patients discharged.\
Centers for Medicare and Medicaid Services (CMS) - ANSWER-The division of the
Department of Health and Human Services that is responsible for developing healthcare
policy in the United States, for administering the Medicare program and the federal
portion of the Medicaid program, and maintaining the procedure portion of the
International Classification of Diseases, ninth revision, Clinical Modification (ICD-9-CM)
and International Classification of Diseases, tenth revision, Procedure Coding System
(ICD-10-PCS); called the Health Care Financing Administration (HCFA) prior to 2001.
Cesarean section rate - ANSWER-The number of cesarean sections (or C-sections)
performed during the period of study, divided by the total number of deliveries (including
C-sections) for the same period.
Chi squared test - ANSWER-A statistical test that is used to test for relationships
between categorical variables. The null hypothesis for this test is that there is no
association between the two variables.
Cluster random sampling - ANSWER-The population is divided into groups before the
sample is selected. The groups or clusters must be mutually exclusive and exhaustive.
(That is, every unit in the population is assigned to one and only one cluster.) Clusters
are then randomly selected to make up the sample. Cluster sampling may be performed
as single-stage or two-stage.
CMS-1500 - ANSWER-1. The universal insurance claim form developed and approved
by the American Medical Association (AMA) and the Centers for Medicare and Medicaid
Services (CMS) that physicians use to bill Medicare, Medicaid, and private insurers for
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