COMMUNITY DENTAL HEALTH NURSING FINAL 2025/2026
ACTUAL EXAM COMPLETE 200 QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS) |ALREADY
GRADED A+
In 2008, 250 cases of squamous cell carcinoma were reported among a group of
10,000 18-year-olds examined in Fort Rock, Arizona. This is an example of
A) Rate
B) Incidence
C) Prevalence
D) Morbidity
E) Mortality
D) Morbidity
The rate of occurrence of a new disease in a population during a given period is
referred to as its
A) Incidence
B) Prevalence
C) Patterns
D) Severity
A) Incidence
Rejecting the null hypothesis when it is true
A) An Alpha error
B) A Type II error
C) A Beta error
D) An alternative hypothesis
A) An Alpha error
When comparing TWO mean scores (variables, values), which of the following is
the BEST test to perform?
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A) A Chi Square Test
B) A Student t-test
C) An Analysis of Variance (ANOVA)
D) A degree of freedom test
B) A Student t-test
"A" has a strong correlation with "B"; therefore we know that "A" causes "B"
A) True
B) False
C) More information is needed to know
D) If the p-value is greater than or equal to .05
B) False
Which of the following does a (-.95) correlation coefficient (r) represent?
A) a low correlation
B) a moderate correlation
C) a high correlation
D) a very high correlation
D) a very high correlation
Which of the following does a (0.35) correlation coefficient (r) represent?
A) a low correlation
B) a moderate correlation
C) a high correlation
D) a very high correlation
A) a low correlation
Clinical studies should include a __________________ to determine whether the
independent variable has an effect on the dependent variable.
A) Extraneous variable
B) Controlled variable
C) Pilot study
D) Placebo
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D) Placebo
Examiners should be ____________________ to ensure study effectiveness
A) working simultaneously
B) calibrated
C) collaborating
D) cooperative
B) calibrated
The extent of the linear relationship between two variables is:
A) Normal distribution
B) Correlation
C) Left skew
D) Right skew
B) Correlation
In a negative relationship, the scores are:
A) inverse
B) Positive
C) Normally distributed
D) High
A) Inverse
When sampling a population, ensuring that every possible subject is selected
independently and has an equal chance of being selected is termed:
A) Systematic
B) Pooling
C) Convenience
D) Random
D) Random
To further define the sample during the study by defining information such as age,
gender, weight, or educational levels of subjects is termed:
A) Pooling
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B) Randomizing
C) Deliniating
D) Stratifying
D) Stratifying
A study which utilizes past medical records to describe a mother's use of xylitol
during gestation compared to children's current dental health status is termed:
A) epidemiology
B) Prospective
C) Retrospective
D) Case study
C) Retrospective
A study that evaluates subjects on two different treatments at two different times
is termed:
A) Crossover
B) Blind
C) Split mouth
D) Wash out
A) Crossover
The p-value is:
A) The chance the null hypothesis is true
B) A probability value
C) Statistically significant if lower than 0.05
D) All of the above
D) All of the above
The researcher provides evidence of reliability and validity of the survey to prove:
A) The survey measures independent and dependent variables
B) The survey has reproducibility and can be generalized to the intended
population
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