Validity and Reliability of Interview as Selection Method

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TABLE OF CONTENTS

1.0 INTRODUCTION 1

2.0 THE SELECTION METHOD CONCEPTS1

3.0 THE JOB INTERVIEW3
* 3.1 RELIABILITY AND VALIDITY OF THE JOB INTERVIEW4
* 3.2 STRUCTURING THE CONTENT OF THE INTERVIEW5

4.0 INTERVIEW IS THE BEST SELECTION METHOD?6

5.0 CONCLUSION7

6.0 LIST OF REFERENCES8

1.0 INTRODUCTION
Workforce planning is a systematic process in which the organization identifies the human resource needs and have it aligned to meet the organization’s goals, visions and missions. Comprising of several diverse roles in the Human Resource function itself, it is the core duty for every personnel department to manage it’s staffing effectively by recruiting, delivering and developing the people as well as the internal environment appropriately for the organization (Rees and French, 2010). Selecting the right people for the right job with the right attitude allows the company to excel and meet it’s objective efficiently. The process of employee selection which contributes to a large portion of the sustainability and profitability of a company calls for the need of Human Resource Management. The hiring process of a good candidate for a job involves three basic steps; recruitment, selection and socialization. It is very costly for an organization when poor hiring decisions are made. Problems deriving from poor hires are largely high cost of rehiring and retraining, friction amongst staffs as well as resentment of other better workers. Selection is basically the process of making a “hire” or “no hire” decision regarding each applicant for a job (Anderson and Shackleton, 1993). There are several methods established by Human Resource (HR) experts when it comes to selecting the best candidates for any job positions. Methods include work simulation, psychometrics tests, situational judgements evaluations, assessment centres and many more but the most commonly used selection tool would be the job interview. The job interview typically precedes the hiring and is favoured by interviewers to evaluate candidates.

2.0 THE SELECTION METHOD CONCEPTS
Selection of employees determines the overall quality of an organization’s human resources. Letters of recommendation, application forms, ability tests, personality tests, honesty tests, interviews, assessment centres, drug tests, reference checks, background checks and handwriting analysis are all common selection tools used by organizations. When using these techniques, the HR should be aware of two concepts which are important for selection tools – reliability and validity. Being concept to measure the predictive validity and reliability of future job performances, it is the most important property when assessing an employee for selection (Schmidt and Hunter, 1988). The concept of reliability and validity are interrelated. Reliability is the prerequisite for validity. For example, a test can be reliable but invalid, however, a test cannot be valid if it is not reliable. Reliability

Reliability means that the selection methods, tests and ensuing results are consistent and do not vary with time, place or different subjects (Tyson et all 1996). For instance, an employee sitting for a test has to produce the same result every time, though at different points of time. The measurement of reliability almost always involve some irregularity due to constraints such as the difficulty to simulate the same conditions and parameters for an assessment. Other factors which could hinder the measure would be errors such as contamination error. For example, an interviewer might rate an average job candidate lower than what is supposed due to pressure from other job duties or personal reasons. Therefore, perfect reliability when assessing an employee rarely happens due to unwanted influences. Validity

Validity purports to measure how far a correct prediction of success in employment has been made. Validation then...
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