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What would be an appropriate statistical test to compare the mean scores between the power toothbrushing group and the group that received no instructions? (hint it test two groups)

Testlet:  Questions 1-6 You have recently been employed as a public health dental hygienist in a local health department.  You have been asked to plan, implement, and evaluate a school-based educational and preventive program for selected elementary schools located in your school district.  The program is to be based on the Healthy People 2020 oral health objectives.  Your plan includes classroom education and the use of a mobile dental van to provide cleanings, sealants, and fluoride treatments.  The following questions relate to this program. Which of the following Healthy People 2020 objectives will be part of the program you are developing?  Check all that apply

In reading the results of a research article you note that the correlation coefficient between the two variables in the study is reported as (r = -.85)  This would indicate:

Which of the following statements is NOT TRUE regarding the differences between program goals and program objectives?

On the dental van, you will be using the Basic Screening Survey form to assess the needs of the children and make appropriate referrals for treatment.  Which of the following methods would be the simplest, most cost-effective way to relay to the parents the overall needs of their children after the screening?

What is the name for the ongoing, systematic collection, analysis, and interpretation of data that is essential to public health practice?

The epidemiological triangle consists of all of the following factors EXCEPT one.  Which one is the EXCEPTION?

The dental hygiene students decided to assess oral hygiene status of the third grade students using PHP.  The median score for the group was 4.5 on a five point scale. This represents which of the following?

Multiple choice. Choose the best answer.

The focus of the private dental practitioner is the needs of the individual patient.  By contrast the mission of dental public health_________________________________.