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Choose T (true) or F (false) from the dropdown menu next to each item in the following Qs For the diagrams (A and B) below: Diagram A: Diagram B: Diagram A is a case-control study design  The appropriate measure of association for Diagram B is odds ratio  Diagram B is a cohort study design Diagram A is an observational study The appropriate measure of association for Diagram A is relative risk Diagram B is an example of an experimental study design

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Choose T (true) or F (false) from the dropdown menu next to each item in the following Qs Indicate whether the following statements concerning measures of central tendency and variability are true or false: Means and medians can never be negative  Medians are not robust to outliers, while means are robust to outliers The interquartile range is the difference between the 50th and 25th percentile The median of the following data is 7.5: 3,5,10,11 

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Choose T (true) or F (false) from the dropdown menu next to each item in the following Qs R0 of a microparasite: will be negatively related to duration of infectiousness  [Answer1] determines the rate of spread of a new infection in a population [Answer2] has the same value for a given disease in different communities  [Answer3] will be high if the infection transmission rate, (p*c or β), is high  [Answer4] is positively related to the proportion of individuals who need to be vaccinated   [Answer5]

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Choose T (true) or F (false) from the dropdown menu next to each item in the following Qs In epidemiological research: gender is a numeric quantitative variable   eye color is a qualitative variable  number of bednets per household is a discrete quantitative variable  stages of cancer represent variables measured on an ordinal scale  height and weight represent variables measured on an interval scale 

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Choose T (true) or F (false) from the dropdown menu next to each item in the following Qs Indicate whether the infectious disease epidemiology term listed below is correctly defined: Incidence: Proportion of population that is infected at a particular time  Attack rate: Proportion of susceptible individuals in a given setting that become infected Seroprevalence: Proportion of population carrying antibodies indicating past exposure to pathogen Prevalence: Number of new infections per unit time  Force of infection: Per capita rate of infection per unit time 

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Choose T (true) or F (false) from the dropdown menu next to each item in the following Qs Indicate whether the objective listed below is correctly defined: Control: Reduction of infection incidence, prevalence or morbidity to a locally acceptable level  Elimination: Permanent reduction to 0 of the worldwide incidence of infection Extinction: Parasite no longer exists in nature or the laboratory    Eradication: Reduction of the incidence of infection to 0 in a defined geographic area