is a process of reviewing clearly articulated research by systematically identifying, selecting and appraising all relevant literature. It includes the analysis of any relevant existing data related to the research question. This process should be replicable in methodology and can be quantitative or qualitative in nature.
refers to a program methodology used to guide program planning and development by pinpointing how activities are understood to produce a series of results and intended outcomes. It helps to determine why, how and for whom a program works or doesn’t work, which will in turn guide decisions about evaluation and program development.
to demonstrate the truth or accuracy of an element or program in achieving intended outcomes.
