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A Statistical Test On Homometry

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θ ̂_i=(∑_(i=1)^k▒〖W_i Y_i 〗)/(∑_(i=1)^k▒W_i ) with W_i=1/v_i .
The fixed-effect model (equation (1)) assumes that the k study-specific summary statistics share a common mean θ. A statistical test for the homogeneity of study means is equivalent to testing
H0: θ=θ_1= θ_2= · · · = θ_k against
H1: At least one θ_i is different:
Under H0, for large sample sizes, Q_W=∑_i^k▒〖W_i 〖(Y_i - θ ̂)〗^2 〗∼χ_(k-1)^2¬. If Q_W is greater than the 100(1-α) percentile of the χ_(k-1)^2 distribution, then the hypothesis of equal means, H0, would be rejected at the 100 per cent level. If H0 is rejected, the meta-analyst may conclude the study means originated from a couple of people that are distinct and carry on by either trying to identify covariates that …show more content…

Chapter 3: Methods

3.1 Updated Systematic Review
A systematic review of obesity research in Kuwait was carried out in order to precisely analyse the literature and research to date. Roberts and petticrew (2006) stated that a systematic review extensively assesses, synthesises, and in addition identifies the important studies on a topic. A systematic review is applicable to research where the outcome of the effectiveness of the study is not certain.
Robert and Petticrew (2006) compiled seven important steps for systematic reviews, and the steps are: Know the various types of study to be performed to mark the study complete; clearly define the research question or hypothesis; assess and screen the studies set by seeing if the meet the comprisal standard or if they need additional analysis; the studies should be critically appraised so that it will be included in the systematic review; synthesise the studies and assess for homogeneity; the study should be assessed for homogeneity, and the study should also be synthesised; and a comprehensive literature review should be carried out in order to locate the studies; disseminate the end result of the review.

This review was written in compliance with the recommended format stated by

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