When making inferences from data analysis, sample assumes a primary position. Sample for any research is selected by following a particular sampling plan.
As discussed in my previous article “Understanding research” there could be different purposes for research. It can be exploratory or descriptive and the research methods are not mutually exclusive. However, over the period of research the researcher may identify more than one purpose and choose a research method.
Reliability of questionnaire is a way of assessing the quality of the measurement procedure used to collect data. In order to consider a result valid, the measurement procedure must first be reliable. choose a measure while examining the construct of a study. Construct is the hypothetical variable that is being measured and questionnaires are one of the mediums.
Measurement is a replicable and systematic process through which an object or instrument is quantified or classified as in the field of social science that deals with quantification of behaviour. In this case determining validity of the measuring instrument (questionnaire) holds utmost importance (Drost 2011).
Merriam Webster defines questionnaire as “a written set of questions that are given to people in order to collect facts or opinion about something”. For a researcher, however, questionnaire refers to a set of questions developed “for obtaining statistically useful or personal information from individuals”
The term allergy was first given by von Pirquet in 1906 to an immune response that is not protective to the host (Nieminen 2009). The purpose of immune system is to generate antibodies in response to pathogens or foreign matter.
Identification of research gaps by reviewing and exploring eminent literature poses utmost importance for the furtherance of the study.