Statistics Final Part 3

rad2329's version from 2016-12-12 19:42

Section 1

Question Answer
Four types of data that represents observations that can be measured on an evenly distributed scale beginning at a point other than tru zero.Categorical data
A graphic technique used to illustrate the relationship between continuous measurements; consists of a line drawn to connect a series of points on an arithmetic scale & is often used to display time trends.Line graph
A type of graph that shows data points collected over time & identifies emerging trends or patterns.Run chart
A graphic technique in which the proportions of a category are displayed as portions of a circle.Pie chart
A graphic technique used to display the frequency distribution of continuous data (interval or ratio data) as either numbers or percentages in a series of bars.histogram
The process of selecting subjects for a sample from each cluster within a population.Cluster sampling
A type of research instrument with which the members of the population being studied are asked questions & respond orally.Survey
A systematic investigation of all the knowledge available about a topic from sources such as books, journal articles, theses, & dissertations.Literature review
An administrative body that provides oversight for the research studies conducted within a healthcare institution.Institutional Review Board
A statment that describes a research question in measurable terms.Hypothesis

Section 2

Question Answer
Making up data or results & recording or reporting them.Fabrication
A sample in which every element in the population has an equal chance of being selected.Random sample
The use of subjects who are nearby or at hand.Convenience sampling
A technique where the population is first segmented into mutually exclusive subgroups, and then judgement is used to select the subjects or units from each segment based on a specified proportion.Quota sampling
The visual display, on a single screen, of the most important information that a physician would need to see about his patients.Dashboard
Massive amounts of information that can be interpreted by analytics to provide an overview of trends or patterns.Big data
The process of extracting & analyzing large volumes of data from a database.Data Mining
The task of transforming, summarizing, or modeling data to allow the user to make meaninful conclusions.Data analysis
The science of examing raw data with the purpose of drawing conclusions about that information.Data analytics
A collection of data that reflects all aspects of hospital operations that is used for reporting & analysis.Clinical data warehouse

Section 3

Question Answer
Allows users to prescribe a number of different possible actions.Prescriptive analytics
The summarization of data.Descriptive analytics
Data that can be accessed as it comes into a computer system.Real-time analytics
Branch of data mining concerned with the prediction of future probabilities & trends.Predictive analysis
This appies to a unit of service received by one inpatient in one 24-hour period.Inpatient Service Days
Inpatient Discharges include ____.Deaths, Transfers to other healthcare facilities, Sending a patient home.
An intrahospital transfer occurs when ____.An inpatient is moved from one PCU to another PCU. (Example: a patient moved from a surgical unit to a medical unit)
Patient's that are admitted & discharged on the same day are calculated as part of the _____.Inpatient Census, Daily Inpatient Census
Test used to assess the differences among more than two means.ANOVA (Analysis of Variance)
A test of significance, represented by x2, that deals with nominal data & frequencies, specifically data where the standard diviation & mean are not meaninful descriptions.Chi-square

Section 4

Question Answer
A healthcare statistic that is calculated from the standard error of the mean, it is an estimate of the true limits within which the true population mean lies; the range of values that may reasonably contain the true population mean.Confidence interval
Statistics that describe populations.Descriptive statistics
Statistics that are used to make inferences from a smaller group of data to a large one.Inferential statistics
A hypothesis that states there is no association between the independent & dependent variables in a research study.Null Hypothesis
A value that is found by taking many large samples, calculating the mean for each sample, and then finding the standard diviation of all the sample means.Standard error of the mean
A test of the null hypothesis to determine if a set of results is statistically significant.t-test
Occurs when the null hypothesis is rejected, yet it is actually true.Type I error
Occurs when the null hypothesis is not rejected, yet it is false.Type II error
Quantitative data are _____.Numeric, and can be numerically counted. They deal with measurements.
Qualitative data are _______.divided into the nominal scale & ordinal scale. Observations are organized into categories in which there is no recognition of order & ordinal data are types of data where the values are in ordered categories. Describes observations.
The fourth equal part of a distribution.Quartile
The tenth equal part of a distribution.Decile
Denotes a value's position in a group relative to other values organized in order of magnitude.Rank

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