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Applied Research
Research that focuses on the implementation of theories in practice is called ____ research.
Ratio Variables
Variables that are classified to have numeric responses plotted on a scale on which a value of zero stands for nothing , is known as:
Qualitative data
If a survey question asks an open-ended question what type of data is collected?
Unsubstantial guess or hunch
All of the following are characteristics of a theory except _____. (Model that explains behavior, Set of conjectures that logically follow, Predictive expression based on previous observations, Unsubstantial guess or hunch)
Model (theories)
A theory's known properties are included in a _____
Ordinal Scale data
Survey responses collected using a 7 point Likert scale are an example of:
Inferential statistical technique
The type of statistical techniques used to make conclusions based on a sample are:
Secondary (use of data)
Determining the patient volume by service line based on ICD-9 code is a ______ use of the ICD-9 code.
ALL: Mean, Standard Deviation, Range
Which of the following are considered descriptive statistics? (Mean, Standard Deviation, Range, All of the above)
Inductive
On his first day of work, the new clerk in release of information processed three requests for information. He observed that all three requests were from law firms. He concluded that all requests for information come from law firms. What type of reasoning did the clerk use?
Data Dictionary
A roadmap to the contents of a database
Select data, Update data, Delete data
SQL may be used to:
FROM
What key word is missing from the following query?: Select patient_name where patient_city = Buffalo
Bar Chart
Which graph is the best choice to use when comparing lengths of stay across three hospitals?
Scatter Diagram
Which graph is the best choice to use when exploring the relationship between length of stay and charge for a set of patients?
The answer to the question or the solution to the problem has been there for a while
Which of the following is not a characteristic of a well-developed research questions? (The research's results advance knowledge in a definable way,
The answer to the question or the solution to the problem has been there for a while, The question has obvious and explicit links to a larger body of knowledge, such as a theory or a research model, The question is clearly and exactly stated)
none of the above
Which of the following is NOT one of the basic components of research process? (Selecting an instrument, gathering data, presenting results, analyzing the data, determining a research design and method, performing a literature review, defining the research problem, none of the above)
Good personal guess
Which of those is not one of the three rich sources of meaningful research questions? (Good personal guess, research model, recommendation of earlier researchers, gasps in the body of knowledge)
Pie Chart
Which graph will provide the best presentation of patient gender for a clinic?
the Average length of stay by month for the last year
A line chart is the best display of which: (The proportion of patients in each payer class, the ALOS by month for the last year, The # of procedures performed per physician, the ALOS by specialty)
Systematic
What characteristic of narrative reviews makes them undesirable?
88.6%
On December 1, Community Hospital had a bed capacity of 375. On December 15, twelve beds were closed. During the month of December, there were 12,888 inpatient service days, 13,444 days rendered to discharged patients, and 604 discharges and deaths. What is the inpatient bed occupancy rate for December?
Inpatient service day
Which of the following is a unit of measure equal to the services received by one inpatient during a 24-hour period?
380
At midnight December 1, the inpatient census at County Hospital was 375. On December 2, 17 patients were discharged alive, 4 patients died, 24 patients were admitted, and two patients were admitted and discharged the same day. How many inpatient service days were provided on December 2?
Primary
A researcher reported the results of a clinical trial in a journal. This type of source is known as _____.
7.8 days
In August, Community Hospital discharged 1,235 patients and admitted 1,360 patients. The hospital provided 9,782 days of service to inpatients and 9,576 days of service to discharged patients, what is the average length of stay at Community Hospital for the month of August?
Identify knowledge gaps regarding a subject
One of the functions of a literature review is to _____.
Average daily census = 24; Inpatient bed occupancy rate = 96.8%
For the month of August, Community Hospital provided 750 days of service to newborns. There are 25 bassinets in the newborn nursery. Calculate the average daily census for newborns and the inpatient bed occupancy rate for newborns for the month.
Deaths of inpatients only
What does the hospital gross death rate include?
Evaluation
Health technology assessment is an example of which of the following types of research? (Evaluation, prescriptive, Quasi-experimental, correlational)
convenience
The director of the health information department wanted to determine the level of physicians satisfaction with the departmental services. The director surveyed the physicians who came to the department. What type of sample is this?
5.26%
At Community Hospital, 247 operations were performed in January. Thirteen of these patients developed infections within ten days of surgery. During January, 435 patients were admitted and 442 patients were discharged. What is the postoperative infection rate for the month?
7.6 per 1,000
In a community of 44,000, there were 335 deaths in 20XX. What is the crude mortality rate?
Prescriptive
Which of the following is not a research design? (descriptive, Prescriptive, quasi-experimental, correlational)
Descriptive
The poll rating for the most watched TV Show is an example of which of the following? (descriptive, Prescriptive, quasi-experimental, correlational)
Experimental
In which research design we can establish causality? (correlational, descriptive, experimental, historical)
none or very weak
If the correlation between the Flu incidence rate and temperature equals 0.05, the correlation is considered:
Deaths of inpatients only
What does the hospital gross death rate include?
Crude death rate
Which of the following is a measure of the actual observed mortality in a community? (Crude death rate, sex-specific death rate, cause-specific death rate, age-adjusted death rate)
Data Driven
Healthcare is a ____ driven business
Data Analysis
Task of transforming, summarizing or modeling data to allow the end user to make meaningful conclusions
Primary data analysis is the use of data for its primary purpose
Example: Billing and claims data's primary use it to determine services rendered and payment to from a patient or third party payer
Secondary data analysis is the use of data beyond its primary purpose
Example: ICD-9 diagnosis codes are assigned to a patient to record diseases present or discovered during an encounter. Using a profile of the most common ICD-9 diagnosis categories for the purposes of determining the patient load by service line is a secondary use.
Descriptive Statistics
Characterizes the distribution of the data. Estimates the center or 'typical' value. Measures the spread or variation in the data
Inferential Statistics
Using sample data to make conclusions or decisions regarding a population
Not practical to observe the entire population
Often accompanied with a probability of making an incorrect decision based on the sample
Qualitative data
Describes observations about a subject
Typically free text or comments
May be recoded or placed into categories for analysis
Example:
A nurse describes a patient as having pale skin tone.
Survey question: What do you like most about this course?
Nominal (data scale)
Qualitative data scale; categories without a natural order: Diagnosis codes, Clinical units, Colors
Ordinal (data scale)
Qualitative data scale; categories with a natural order: Patient satisfaction surveys, Patient severity scores, Evaluation and management code levels
Quantitative data
Naturally numeric
May be categorical (ordinal or nominal)
Interval (data scale)
Quantitative data scale; numeric values where the distance between two values has meaning, but there is no true zero and the interpretation is not preserved when multiplying/dividing: Temperature, Dates
Ratio (data scale)
Quantitative data scale; numeric values where zero has meaning (nothingness/none) and multiplying/dividing values has meaning: Length of stay, Age, Weight
Gender, HCPCS codes, department or unit
Examples of Nominal data types
patient satisfaction scores, severity scores, trauma center level, surveys measured on a Likert scale
Examples of Ordinal data types
Temperature, pH level
Examples of Interval data type
charges, length of stay, or age
Examples of Ratio data type
Frequency counts, proportions, mode
appropriate Descriptive statistics for Nominal data type
Frequency counts, proportions, mode
appropriate Descriptive statistics for Ordinal data type
Mean, Median, std deviation, range
appropriate Descriptive statistics for Interval data type
Mean, Median, std deviation, range, geometric mean, coefficient of variation
appropriate Descriptive statistics for Ratio data type
Exploratory Data Analysis (EDA)
Used to uncover patterns in data
Typically a secondary use of data
Primarily graphical analysis (plots, trends, etc.)
Data Mining
Also looking for patterns in data
Adds in descriptive statistics and more formal statistical techniques
May be used for benchmarking and determining high/lower performers
Predictive Modeling
Historical data is used to build models to determine most likely outcome in future
Research Frame
the overarching structure of the research project
Paradigm
another term for 'research frame'
The theory underpinning the study
The models illustrating the factors and relationships of the study
The assumptions of the field and the researcher
The methods
The analytical tools
Research frame includes: (5)
Theory
the systematic organization of knowledge that predicts or explain behavior or events. Both the results and foundation of research
Simplify
The best theories _____ the situation.
Concepts, Interrelationships, Consequences
Characteristics of a Theory
Concepts (theories)
abstract ideas generalized from a particular instance (theory characteristics)
Interrelationships (theories)
Are assumed to exist among concepts (theory characteristics)
Consequences (theories)
are assumed to follow logically from the relationships proposed in the theory (theory characteristics)
Model
representation of a theory in visual format; aid in comprehension of a theory
Research methodology
set of procedures or strategies used by researchers to collect, analyze, and present data
Basic and Applied
Types of research
Basic Research (bench science)
focuses on the development of theories and their refinement; mainly occurs in labs...answers "why?"
Applied Research (bedside)
focuses on the implementation of theories into practice; answers "what?" and "How?"
Translational research (bench-to-bedside)
translates new knowledge, mechanisms and techniques generated by advances in basic science research into new approaches for prevention, diagnosis, and treatment of disease
Quantitative/Positivism
Qualitative/Naturalism
overarching approaches to research
Quantitative/Positivism
the explanation of phenomena through scientific inquiry and empiricism; The data will have statistical or numerical results; Research that measurable observations or tests a hypothesis
Scientific inquiry
involves making predictions, collecting and analyzing evidence, testing alternative theories, and choosing the best theory
empiricism
based on observed and validated evidence. eg. Research based on experiments
Qualitative/Naturalism
interpret non-numerical observations such as words, gestures, activities, time, space, images, and perception; research that is exploratory or preliminary
Purpose
The ____ of the research determines the approach
Mixed Methods research
combines both quantitative and qualitative techniques within a single study and across related studies
Inductive reasoning/induction
involves drawing conclusions based on a limited number of observations (stereotyping); small to large
deductive reasoning/deduction
involves drawing conclusions based on generalizations; large to small
FALSE: Neither induction or deduction alone is complete satisfactory. Used together they are very effective and are the basis of research
True or False: Induction/deduction alone is satisfactory
Research
a step by step method that people can use to collect reliable and accurate facts
The simpler the better...easier to understand
How does the phrase "keep it simple" apply to theories?
representation of a theory in visual format
Advantage of models?
implementing the theories into practice
Why is research conducted by HIM professionals considered applied research?
The purpose of the research determines the approach
Why is it so important for researchers to know their purpose?
Database
self-describing collection of integrated records
self-describing (databases)
contains a description of its own structure
integrated (databases)
data elements are related to each other
Tables (databases)
two dimensional arrays of data
Rows (databases)
records (in a database)
columns (databases)
variables or attributes (in a database)
Relational Database Management System (RDMS)
Software that is used to hold and maintain data tables and their relationships
Structured Query Language (SQL)
Programming language used to communicate with a relational database; Tool used to maintain databases. (Select, update, insert, delete)