<prompt> Relative risk of a disease measures which of the following-Strength of association between suspected cause and effectBiological plausibility between suspected cause and effectTemporal relationship between suspected cause and effectSpecificity of association between suspected cause and effect  <response>: Relative risk Incidence among exposed incidence among non exposed A typical case control study does not provide incidence rate from which relative risk can be calculated directly because there is no appropriate denominator or population at risk to calculate these rates.in general relative risk can be exactly determined from a coho study Ref: 25th edition, Parks Textbook of Preventive and Social Medicine, Page no. 86 