D514 Test Study Questions and Answers | Verified
ANOVA test
may be used in the research studies where there are two or more groups to compare
Chi-square tests
test which determines if an association exists between two categorical variables
Control group
in a healthcare environment, this group of patients does not receive the treatment that is being
studied
Experimental group
this group of patients receives the treatment being studied with follow up observation to
determine the effect of the treatment
F-test
this is designed to test if two population variances are equal. The ration of the two variances is
compared; if they are equal, the ration of the variances is 1
Frequency
these measure how often a particular value occurs to assess the importance of a value or check
the variation of values in a study
Hypothesis
a proposed explanation for an observation that leads to a prediction; this will be confirmed or
rejected after investigation and data collection
Integrity
research always makes some assumptions which must be identified to determine breaches of
this
, Interval data
this includes units of equal size such as IQ results; there is no zero point
What is an example of interval scale?
TIME; time is measured in 24 hours each day and the time between each hour is the same- 60
minutes
Mean
the arithmetic average of a distribution, obtained by adding the scores and then dividing by the
number of scores
Median
the midpoint of the distribution of values, or the point above or below which 50% of the values
fall
Methods section components
When analyzing the quality of a study, a careful evaluation of the research methods can reveal
critical details about population and sample, co-variables and hypothesis, data presentation,
statistical analysis, and study limitations.
Misleading Statistics
Interpreting and presenting the results of data analysis affords opportunities for accidental or
deliberate misrepresentation of data. Examples: implying causation, relying on biases or
incomplete sample, using inappropriate graphical representations
Mode
The value that occurs most frequently in a given data set.
Multivariate Regression analyses
used to analyze and adjust risk; this model contrasts each measured factor to the patient's risk
of a particular outcome
ANOVA test
may be used in the research studies where there are two or more groups to compare
Chi-square tests
test which determines if an association exists between two categorical variables
Control group
in a healthcare environment, this group of patients does not receive the treatment that is being
studied
Experimental group
this group of patients receives the treatment being studied with follow up observation to
determine the effect of the treatment
F-test
this is designed to test if two population variances are equal. The ration of the two variances is
compared; if they are equal, the ration of the variances is 1
Frequency
these measure how often a particular value occurs to assess the importance of a value or check
the variation of values in a study
Hypothesis
a proposed explanation for an observation that leads to a prediction; this will be confirmed or
rejected after investigation and data collection
Integrity
research always makes some assumptions which must be identified to determine breaches of
this
, Interval data
this includes units of equal size such as IQ results; there is no zero point
What is an example of interval scale?
TIME; time is measured in 24 hours each day and the time between each hour is the same- 60
minutes
Mean
the arithmetic average of a distribution, obtained by adding the scores and then dividing by the
number of scores
Median
the midpoint of the distribution of values, or the point above or below which 50% of the values
fall
Methods section components
When analyzing the quality of a study, a careful evaluation of the research methods can reveal
critical details about population and sample, co-variables and hypothesis, data presentation,
statistical analysis, and study limitations.
Misleading Statistics
Interpreting and presenting the results of data analysis affords opportunities for accidental or
deliberate misrepresentation of data. Examples: implying causation, relying on biases or
incomplete sample, using inappropriate graphical representations
Mode
The value that occurs most frequently in a given data set.
Multivariate Regression analyses
used to analyze and adjust risk; this model contrasts each measured factor to the patient's risk
of a particular outcome
