DH 202 FINAL QUESTIONS AND VERIFIED ANSWERS
________ compares two different groups on some variable of interest.
T-test
P-value: measures results that occur by chance during an experiment. A p-value of
_______ is statistically significant.
less than or equal to 0.05
The p-value is a probability value.
__________ statistic studies the relationship between two variables quantitatively.
Correlation
Correlation (r) variables closest to 1 have the strongest correlation. Correlation variables
can also be represented as ___________ and __________.
Positive negative
What variable is made up of distinct and separate units or categories and is expressed
as large or infinite number of measures along a continuum
Continuous
_________ statistics consist of the procedures that are used to summarize, organize,
and describe quantitative data.
Descriptive
Interval measurement states that the distance between scores are equal and that;
No absolute zero-point present
Which of the following are considered measures of central tendency?
mean, median, mode
Represents the average distance of each score from the mean
Variance
A Standard Normal Distribution when plotted on an x-y graph is expressed as
Normal (bell) curve
, Ensuring the rights and safety of the research subject are respected and protected also;
protecting the institution and the research against lawsuits is the responsibility of who?
IRB
The ADA seal is mandatory for dental products, and the dental hygienist should only
make recommendations based on this seal.
True/False
False!
Clinical Expertise, Scientific Evidence, and Patient Needs are all equally important
components of what?
Evidence-Based Practice
Which of the following is a descriptive approach to research?
case study
According to the level of evidence hierarchy, the highest level of evidence is a
randomized controlled trial. There is an increased chance of bias as we approach the
top of the evidence pyramid.
true/false
Both statements are false
What type of approach looks to investigate cause-and-effect relationships?
Prospective
When editorial reviewers who are dental providers/researchers have reviewed an
article, this is also known as?
Peer-Reviewed
A Cross-sectional study does which of the following?
Studies a section of the population in a limited period of time
Institutions that conduct medical research usually have an entity known as the HIPAA.
True/False
false
________ compares two different groups on some variable of interest.
T-test
P-value: measures results that occur by chance during an experiment. A p-value of
_______ is statistically significant.
less than or equal to 0.05
The p-value is a probability value.
__________ statistic studies the relationship between two variables quantitatively.
Correlation
Correlation (r) variables closest to 1 have the strongest correlation. Correlation variables
can also be represented as ___________ and __________.
Positive negative
What variable is made up of distinct and separate units or categories and is expressed
as large or infinite number of measures along a continuum
Continuous
_________ statistics consist of the procedures that are used to summarize, organize,
and describe quantitative data.
Descriptive
Interval measurement states that the distance between scores are equal and that;
No absolute zero-point present
Which of the following are considered measures of central tendency?
mean, median, mode
Represents the average distance of each score from the mean
Variance
A Standard Normal Distribution when plotted on an x-y graph is expressed as
Normal (bell) curve
, Ensuring the rights and safety of the research subject are respected and protected also;
protecting the institution and the research against lawsuits is the responsibility of who?
IRB
The ADA seal is mandatory for dental products, and the dental hygienist should only
make recommendations based on this seal.
True/False
False!
Clinical Expertise, Scientific Evidence, and Patient Needs are all equally important
components of what?
Evidence-Based Practice
Which of the following is a descriptive approach to research?
case study
According to the level of evidence hierarchy, the highest level of evidence is a
randomized controlled trial. There is an increased chance of bias as we approach the
top of the evidence pyramid.
true/false
Both statements are false
What type of approach looks to investigate cause-and-effect relationships?
Prospective
When editorial reviewers who are dental providers/researchers have reviewed an
article, this is also known as?
Peer-Reviewed
A Cross-sectional study does which of the following?
Studies a section of the population in a limited period of time
Institutions that conduct medical research usually have an entity known as the HIPAA.
True/False
false
