CPH EXAM 2 LATEST VERSIONS AND PRACTICE EXAM
NEWEST 2024 COMPLETE 500 QUESTIONS AND
CORRECT DETAILED ANSWERS WITH RATIONALES
(VERIFIED ANSWERS) |ALREADY GRADED A+
It is well recognized that one of the easiest ways to increase statistical power is to
increase the sample size. Which of the following could also be used to increase
power in a study. - ANSWER: Reduce error through using appropriate methods
**Power is primarily influenced by two things, sample size and variability. Power
increases as sample size increases or variability decreases. Variability includes two
parts, true variability and error varibility.
We collected 100 samples of size thirty of household income in Arkansas with
population mean, mu=50 (in thousands). the sample mean, X and sample standard
deviation, s, were recorded and the 95% confidence interval for mu was taken for
each sample. Given the 100 confidence intervals, how many do you expect to cover
the population mean mu=50? - ANSWER: 95
**A 95% confidence interval implies that were the estimation process repeated
again and again, the 95% of the calculated intervals would be expected to contain
the true parameter value mu=50.
Randominzation, stratified analysis, and matching - ANSWER: minimize confounding
Which of the following about the stage of change from the Transtheoretical Model is
true - ANSWER: Action refers to behavior change for less than 6 months
The best time to prepare an evaluation plan for a health intervention program is: -
ANSWER: During the program planning period
**An evaluation perspective when applied during planning can assure that the
program intervention is specific enough to support rigorous evaluation
A major obstacle to risk communication effectiveness is that most risks are derived
from uncertainty, complexity, and incompleteness of environmental data. Which of
the following are additional obstacles to risk communication? - ANSWER: The
distrust felt by the general public due to disagreements among experts; lack of
coordination among risk management organizations; inadequate training of experts
and spokespersons in risk communication skills
Jacobson v massachusetts brought to light that there are difficult tradeoffs between
public and private interets awhich can extend to many areas of public health
concern. What prominent and still current public health issue was the basis of this
debate. - ANSWER: Compulsory vaccination
The national consensus public health strategy of the government, public health
organizations and citizens is known as: - ANSWER: Healthy People
, Which of the following intervention messages is most likely to have an impact on
behavior? - ANSWER: Based on health education theory and tailored to the target
audience
Which of the following is not a method for controlling confounding by demographic
variable like age in epidemiologic studies? - ANSWER: Blinding
Which of the following questions should one ask to determine whether programs are
evidence-based interventions? - ANSWER: What interventions have been
scientifically proven to promote good health behaviors?
A limitation to using hospital discharge data to assess community health problems is:
- ANSWER: Data are only available for sicker people who are admitted to a hospital.
A group of high school teachers are concerned about the increased level of
aggressive behavior they are observing on school grounds and decide to take action
by trying and evaluating an intervention based upon a new untested idea. Which of
the folliwing tools might be the most useful in designing the intervention program
and the evaluation? - ANSWER: A logic model that describes program resources,
activities, and outcomes
Motivational Interviewing is - ANSWER: Often times used to assist individuals in
overcoming ambivalence about changing a risk behavior
**MI is a directive, client centered counseling style or technique for eliciting
behavior change by helping individuals to explore and resolve their ambivalence
toward the behavior.
Which of the following probability distributions is used to model very rare events? -
ANSWER: Poisson
Which of the following statements is true with respect to power - ANSWER: Power is
the capacity of person A to influence person B to do something that person B would
not otherwise choose to do
The standard error (SE) of a sample statistic is - ANSWER: The standard deviation of
the sampling distribution of a statistic
Stidoes A, B, C show similar results. One limitation of a meta-analysis of these three
studies is the failure to: - ANSWER: display differences between trials
The value of accreditation by national accrediting bodies is to: - ANSWER: improve
performance by creating a structure to allow organizations to assess their capacity
and improve health outcomes
The statement that most accurately reflects the primary intent of the Health
Insurance Portability and Accountability Act when enacted in 1996 is - ANSWER:
NEWEST 2024 COMPLETE 500 QUESTIONS AND
CORRECT DETAILED ANSWERS WITH RATIONALES
(VERIFIED ANSWERS) |ALREADY GRADED A+
It is well recognized that one of the easiest ways to increase statistical power is to
increase the sample size. Which of the following could also be used to increase
power in a study. - ANSWER: Reduce error through using appropriate methods
**Power is primarily influenced by two things, sample size and variability. Power
increases as sample size increases or variability decreases. Variability includes two
parts, true variability and error varibility.
We collected 100 samples of size thirty of household income in Arkansas with
population mean, mu=50 (in thousands). the sample mean, X and sample standard
deviation, s, were recorded and the 95% confidence interval for mu was taken for
each sample. Given the 100 confidence intervals, how many do you expect to cover
the population mean mu=50? - ANSWER: 95
**A 95% confidence interval implies that were the estimation process repeated
again and again, the 95% of the calculated intervals would be expected to contain
the true parameter value mu=50.
Randominzation, stratified analysis, and matching - ANSWER: minimize confounding
Which of the following about the stage of change from the Transtheoretical Model is
true - ANSWER: Action refers to behavior change for less than 6 months
The best time to prepare an evaluation plan for a health intervention program is: -
ANSWER: During the program planning period
**An evaluation perspective when applied during planning can assure that the
program intervention is specific enough to support rigorous evaluation
A major obstacle to risk communication effectiveness is that most risks are derived
from uncertainty, complexity, and incompleteness of environmental data. Which of
the following are additional obstacles to risk communication? - ANSWER: The
distrust felt by the general public due to disagreements among experts; lack of
coordination among risk management organizations; inadequate training of experts
and spokespersons in risk communication skills
Jacobson v massachusetts brought to light that there are difficult tradeoffs between
public and private interets awhich can extend to many areas of public health
concern. What prominent and still current public health issue was the basis of this
debate. - ANSWER: Compulsory vaccination
The national consensus public health strategy of the government, public health
organizations and citizens is known as: - ANSWER: Healthy People
, Which of the following intervention messages is most likely to have an impact on
behavior? - ANSWER: Based on health education theory and tailored to the target
audience
Which of the following is not a method for controlling confounding by demographic
variable like age in epidemiologic studies? - ANSWER: Blinding
Which of the following questions should one ask to determine whether programs are
evidence-based interventions? - ANSWER: What interventions have been
scientifically proven to promote good health behaviors?
A limitation to using hospital discharge data to assess community health problems is:
- ANSWER: Data are only available for sicker people who are admitted to a hospital.
A group of high school teachers are concerned about the increased level of
aggressive behavior they are observing on school grounds and decide to take action
by trying and evaluating an intervention based upon a new untested idea. Which of
the folliwing tools might be the most useful in designing the intervention program
and the evaluation? - ANSWER: A logic model that describes program resources,
activities, and outcomes
Motivational Interviewing is - ANSWER: Often times used to assist individuals in
overcoming ambivalence about changing a risk behavior
**MI is a directive, client centered counseling style or technique for eliciting
behavior change by helping individuals to explore and resolve their ambivalence
toward the behavior.
Which of the following probability distributions is used to model very rare events? -
ANSWER: Poisson
Which of the following statements is true with respect to power - ANSWER: Power is
the capacity of person A to influence person B to do something that person B would
not otherwise choose to do
The standard error (SE) of a sample statistic is - ANSWER: The standard deviation of
the sampling distribution of a statistic
Stidoes A, B, C show similar results. One limitation of a meta-analysis of these three
studies is the failure to: - ANSWER: display differences between trials
The value of accreditation by national accrediting bodies is to: - ANSWER: improve
performance by creating a structure to allow organizations to assess their capacity
and improve health outcomes
The statement that most accurately reflects the primary intent of the Health
Insurance Portability and Accountability Act when enacted in 1996 is - ANSWER:
