D514 Analytical Methods of Healthcare Leaders Questions with Detailed Verified Answers

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D514 Analytical Methods of Healthcare
Leaders Questions with Detailed
Verified Answers

Question: ANOVA testQuestions with Detailed Verified AnswersAnalysis of
variance (ANOVA) may be used in research studies where there are two or
more groups to compare.zz


Question:Chi-square testsQuestions with Detailed Verified AnswersChi-
square tests determine if an association exists between two categorical
variables.zz


Question:Control groupQuestions with Detailed Verified AnswersIn a
healthcare environment, this group of patients does not receive the treatment
that is being studied.zz


Question:Experimental groupQuestions with Detailed Verified AnswersThis
group of patients receives the treatment being studied with follow-up
observation to determine the effect of the treatment.zz


Question:F-testQuestions with Detailed Verified AnswersThe F-test is
designed to test if two population variances are equal. The ratio of the two
variances is compared. If they are equal, the ratio of the variances will be 1.zz

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Question:FrequencyQuestions with Detailed Verified AnswersFrequencies
measure how often a particular value occurs to assess the importance of a
value or check the variation of the values in a study.zz


Question:HypothesisQuestions with Detailed Verified AnswersA proposed
explanation for an observation that leads to a prediction. Through
investigation and the use of statistical data, those doing the study will either
confirm or reject the hypothesis. Testing the hypothesis will show if there is a
link (or not) between two or more variables.zz


Question:IntegrityQuestions with Detailed Verified AnswersResearch always
makes some assumptions, depending on the type of method used. Research
assumptions must be identified to determine possible breaches of integrity.zz


Question:Interval dataQuestions with Detailed Verified AnswersInterval data
includes units of equal size, such as IQ results. There is no zero point. An
example of interval scale is time: Time is measured in 24 hours in each day; the
time between each hour is the same, 60 minutes.zz


Question:MeanQuestions with Detailed Verified AnswersMean is the
arithmetic average. Divide the sum of all scores by the total number of
scores.zz


Question:MedianQuestions with Detailed Verified AnswersMedian is the
midpoint of the distribution of values, or the point above or below which 50
percent of the values fall.zz

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Question:Methods section componentsQuestions with Detailed Verified
AnswersWhen analyzing the quality of a study, a careful evaluation of the
research methods can reveal critical details about population and sample,
covariables and hypothesis, data presentation, statistical analysis, and study
limitations.zz


Question:Misleading statisticsQuestions with Detailed Verified
AnswersInterpreting and presenting the results of data analysis affords many
opportunities for accidental or deliberate misrepresentations of data.
Common examples include implying causation, extrapolating beyond the
reasonable, relying on a biased or incomplete sample, and using inappropriate
graphical representations.zz


Question:ModeQuestions with Detailed Verified AnswersMode is the value
that occurs most frequently in the data.zz


Question:Multivariate regression analysesQuestions with Detailed Verified
AnswersMultivariate regression analyses can be used to analyze and adjust
risk. This analysis model contrasts each measured factor to the patient's risk of
a particular outcome.zz


Question:Nominal dataQuestions with Detailed Verified AnswersNominal
data can be measured as a frequency or percentage, and the mean of these
data cannot be calculated. Nominal data in healthcare might include
demographic information about patients. The word nominal means
"pertaining to a name."zz

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Question:Ordinal dataQuestions with Detailed Verified AnswersOrdinal data
can be measured as a frequency, and the mean of ordinal data is often
calculated. Ordinal data in healthcare might include patient satisfaction
surveys using a Likert scale. The word ordinal means to "put in order."zz


Question:Parametric and nonparametric testsQuestions with Detailed
Verified AnswersParametric tests are based on probability distributions.
Nonparametric tests are used when data are not normally distributed.zz


Question:Pearson's correlationQuestions with Detailed Verified
AnswersPearson's correlation is used with interval and ordinal scale data and
determines the extent to which a change in one variable tends to be
associated with a change in another.zz


Question:Qualitative research methodsQuestions with Detailed Verified
AnswersQualitative research is aimed at understanding perceptions,
perspectives, interpretations, and opinions. Qualitative research methods
often include questionnaires, interviews, written documents, observations,
and focus groups.zz


Question:Ratio dataQuestions with Detailed Verified AnswersDivide one
quantity by another, and you have a value. You will have a proportion, a
percentage or a rate.zz


Question:Reliability, validity, and analysis of questionnairesQuestions with
Detailed Verified AnswersQuestionnaires can be evaluated for reliability
based on their consistency (stability) or repeatability over time; questionnaires