questions with complete solutions
what measure is the most common of dispersion?
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a. mean
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b. mode
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c. range
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d. standard deviation
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d. standard deviation
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which study uses a survey method to measure and describe the presence and
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distribution of a disease in a population at one time?
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a. analytical
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b. clinical trial
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c. descriptive
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d. experimental
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c. descriptive
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which occurrence of an illness is in excess of normal expectancy in a community,
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usually occurring suddenly and spreading rapidly?
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a. endemic
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b. epidemic
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c. pandemic
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d. systematic
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b. epidemic
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which sampling consists of selecting an element according to certain subgroups?
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a. convenience
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b. judgement
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,c. random
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d. stratified
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d. stratified
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which amount of untreated caries is in a population at the time of examination?
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a. caries incidence
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b. caries prevalence
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c. dental neglect
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d. primary caries
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a. caries incidence
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which parametric statistic determines whether statistically significant differences
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occur when comparing more than two mean scores?
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a. analysis of variance (ANOVA)
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b. chi-square test
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c. p-value
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d. t-test
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d. t-test
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which level of prevention describes a hygienist demonstrating toothbrushing and
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flossing, and reviewing nutrition?
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a. primary
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b. secondary
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c. tertiary
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a. primary
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which level of government is the National Institute of Health (NIH)?
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a. federal
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b. international
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c. local
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d. state
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a. federal
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,which coefficient has the strongest correlation?
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a. 0.4
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b. 0.6
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c. -0.2
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d. -0.9
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d. -0.9
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which technique best surveys a large population of 8th grade boys regarding their
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oral health habits?
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a. interview
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b. prospective study
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c. questionnaire
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d. survey
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d. survey
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which level of prevention is placing fluoride varnish on an incipient lesion?
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a. primary
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b. secondary
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c. tertiary
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a. primary
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which level of prevention is placing a mesio occlusal fluoride-releasing glass
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ionomer in tooth #15?
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a. primary
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b. secondary
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c. tertiary
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b. secondary
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which law supports the right of a hearing-impaired patient to ask for a signer
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without being charged extra?
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a. Americans with disabilities act (ADA)
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b. emergency medical treatment and active labor act (EMTALA)
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, c. health information technology for economic and clinical health (HITECH)
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d. health insurance portability and accountability act (HIPAA)
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a. Americans with Disabilities Act (ADA)
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which type of supervision supports a dentist recommending treatment, remaining
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on premises while treatment is completed, and then approving work before the
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patient is dismissed?
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a. direct
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b. general
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c. indirect
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d. personal
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a. direct
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which indices most likely assess the prevalence of periodontal disease in
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populations?
a. gingival
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b. periodontal
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c. plaque
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d. PMA
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b. periodontal
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which index measures oral debris?
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a. decayed, missing, and filled surfaces (DMFS)
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b. decayed missing and filled teeth (DMFT)
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c. plaque
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d. sulcus bleeding (SBI)
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c. plaque
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which example is a core function of public health?
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a. case study
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b. clinical study
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c. policy development
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d. treatment
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