Positive square root of variance is 1) SD 2) Mean 3) Correlation 4) Range
Community DentistryAnswer: 1
The DMF index (originally developed by Klein and Palmer) is utilised for 1) All deciduous teeth 2) All permanent teeth except the third molar 3) Cuspids and molar only 4) Six permanent teeth
Community DentistryAnswer: 2
A statistical test which indicates the chance or probability of an observed difference between two means occurring by chance is called 1) Significance 2) Means 3) Ratio 4) Normalcy
Community DentistryAnswer: 1
The following is used to determine if a statistically significant difference exists between observed frequency and expected frequency 1) Chi-square test 2) T-test 3) Anova 4) F-test
Community DentistryAnswer: 1
Vaccine for caries is based on which immunoglobulin 1) IgG 2) IgA 3) IgE 4) IgM
Community DentistryAnswer: 2
Which of the following conditions must exist before a person will take action to preserve his health 1) Feeling of susceptibilty to a disease 2) A feeling that the disease or condition is severe if it occured 3) Feeling that there is an action taken to reduce severity of condition 4) All of the above
Community DentistryAnswer: 4
The most common latest fluoride additive in dentifrice is 1) Calcium fluoride 2) Stannous fluoride 3) Sodium fluoride 4) Sodium mono fluoro phosphate
Community DentistryAnswer: 4
Values of SD + 2 fall within 1) 90 % 2) 95 % 3) 98 % 4) 99 %
