Primary Data and Secondary Data

Primary Data and Secondary Data

There are two major approaches to gathering information about a situation, person, problem or phenomenon. When you undertake a research study, in most situations, you need to collect the required … Read more

Types of Bias in Epidemiology

Types of Bias in Epidemiology

Any trend in the collection, analysis, interpretation, publication, or review of data that can lead to conclusions that are systematically different from the truth can be termed as bias. Bias … Read more