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Following statements are all incorrect except TWO; please identify the two correct statements; Two answers are required. [7 Non-parametric tests can be used to analyse ordinal, interval and ratio variables. [7 In order to assess statistical significance both p value and 95% Cl (if available) should ideally be taken into account. [7 The difference between Primary and Secondary research is that secondary research generates new data from study participants whereas primary research uses data that had already been collected. Systematic review is reviewing a study or a research paper very systematically. The suitable measure of association for a cohort study is odds ratio while for a case control study it is relative risk. Choice of a correct test for data analyses does not depend on research purpose, measurement scale ofthe dependent variable and number ofgroups involved. llll Informing potential research participants of all possible risks and benets is essential for Informed Consent and is an optional moral duty of a researcher, Systematic review is a comprehensive identification and synthesis of the available studies on a specified topic and it is preferable that these studies have: Same study design Same sample size Same population Same source in terms of database