Concept of Validity and Reliability in Relation to Selection of Staff.
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Concept of Validity and Reliability in Relation to Selection of Staff An organisation has two key resources, people and money. 'Human beings are the lifeblood of any enterprise. They are the company's most vital asset'. (Plumbley, 1976). Recruitment and Selection comprise the important HR functions of the organization and should be thought of as a matching process. Selection commences as soon as the applicant responds to an advertisement or makes an unsolicited enquiry. One way to look at the selection process is to view it as a series of obstacles that applicants must clear in order to obtain the job. Each successive obstacle eliminates some applicants from contention. For example, applicant skills can be evaluated through application forms, interviews, tests, and reference checks, letters of recommendation or reference, and physical examinations. To judge the effectiveness of any selection technique two statistical concepts have been of particular importance, Reliability and Validity....


