Two primary features of the tropical Pacific climate are the Intertropical Convergence Zone (ITCZ) and the El Nino/NiÃ±o Southern (OSCILLATION). Enso THE itcz is the-circum global zone of convergence of the northern and southern trade winds that results in a band of heavy rainfall near the. equatorwo primary features of the tropical Pacific climate are the Intertropical Convergence Zone (ITCZ) and the El Nino/NiÃ±o Southern (OSCILLATION). Enso THE itcz is the-circum global zone of convergence of the northern and southern trade winds that results in a band of heavy rainfall near the. equator
Factor analysis is a statistical method used to describe variability among observed, correlated variables in terms of a potentially lower number of unobserved variables called factors.For example, it is possible that variations in four observed variables mainly reflect the variations in two unobserved variables.xploratory factor analysis (EFA) is used to identify complex interrelationships among items and group items that are part of unified concepts. The researcher makes no a priori assumptions about relationships among factors.
What is a meta-analysis? Meta-analysis is the statistical procedure for combining data from multiple studies. When the treatment effect (or effect size) is consistent from one study to the next, meta-analysis can be used to identify this common effect. When the effect varies from one study to the next, meta-analysis may be used to identify the reason for the variation. Why perform a meta-analysis? Decisions about the utility of an intervention or the validity of a hypothesis cannot be based on the results of a single study, because results typically vary from one study to the next.