Testlet 3 A dental hygienist has been asked to do a research study to determine how to best assist the nursing home residents at Middleton Village to obtain better toothbrushing habits and reduce the amount of root caries that seem to be forming in the teeth of the residents.She hypothesized that if the nursing assistants who work at the nursing home used a powered toothbrush to clean the resident’s teeth, that they could do a better job of plaque removal than if they used a manual toothbrush.The hygienist also hypothesized that if she could teach the nursing assistants to administer stannous fluoride treatments on a weekly basis, the rate of root caries would decrease. What type of sample is being studied? 

Testlet 7:  Three state dental public health hygienists are identifying oral health needs of persons residing in state-subsidized drug and alcohol rehabilitiation centers. Based off the study results a public health program will be created and implemented into these centers. One study compared oral lesions in persons who smoke cigarettes to those who do not smoke. This study was performed in three state rehabilitiation centers, and patient selection was done in alphabetical order and selecting every third individual from the patient list. The two dental hygienists who worked jointly for one day at each of the three sites calibrated the dental indices to be used.  The dental hygienists established the hypothesis as “There is no significant correlation between cigarette smoking and oral lesions”. This is an example of what type of hypothesis?

Testlet 4 A sample of Dental Hygiene National Board Exam scores from the graduating class at Madison College were reported as follows:  98,  82,  97,  87,  76,  77,  70,  80,  77,  99,  84 What is the mean for the above sample of scores? 

The numbers in the boxes on this grid represent?  3 1 2 2 0 4*

As the frequency and effectiveness of oral hygiene practices increase, the frequency of gingivitis decreases. The example is which type of correlation. 

In a retrospective study looking at the efforts of smoking on lung function, 2 groups are studied, smokers and non-smokers. In this study, the smokers would be referred to as

Testlet 7:  Three state dental public health hygienists are identifying oral health needs of persons residing in state-subsidized drug and alcohol rehabilitiation centers. Based off the study results a public health program will be created and implemented into these centers. One study compared oral lesions in persons who smoke cigarettes to those who do not smoke. This study was performed in three state rehabilitiation centers, and patient selection was done in alphabetical order and selecting every third individual from the patient list. The two dental hygienists who worked jointly for one day at each of the three sites calibrated the dental indices to be used.  What is the following statement an example of? To reduce the smokers tobacco-related morbidity and mortality through sustained reductions in tobacco use and to reduce the exposure of non-smokers to harmful tobacco smoke for the persons residing in the rehabilitiation centers within the next 12 months.

When a research study measures what it is supposed to measure, and it can be generalized to the entire population,  it is said to be? 

The “M” in the DMFT is used to designate?

The DMFT index is a/an ______Index?