Employment Interviewing

Introduction

The employment interview is one of the most visible and consequential activities in recruitment and selection. It enables an organisation to gather evidence about a candidate’s knowledge, skills, behaviour, motivation and likely fit with the requirements of a job. It also allows candidates to evaluate the organisation, the work and the employment relationship. However, an interview is not automatically a valid selection method. An informal conversation may be pleasant while producing unreliable, biased and legally risky decisions.

Professional interviewing therefore requires design, consistency, evidence-based questioning, trained interviewers and defensible decisions. The central principle is simple: selection decisions should be based on relevant evidence of job-related capability, not intuition, similarity, personal preference or assumptions about a candidate’s background.

This chapter explains how to plan and conduct structured, behavioural, situational, competency-based, panel and virtual interviews. It also considers scoring guides, interviewer errors, bias, ethical responsibilities, technology and practical implementation.

Learning Objectives

By the end of this chapter, you should be able to:

• explain the purpose, strengths and limitations of employment interviews;
• distinguish structured, unstructured, behavioural, situational and competency-based interviews;
• develop interview questions from job requirements;
• plan and conduct panel and virtual interviews professionally;
• construct a scoring guide and evaluate evidence consistently;
• identify common interviewer errors and sources of bias;
• apply ethical, legal and inclusive interviewing practices; and
• make a documented, job-related selection recommendation.

1. The Nature and Purpose of an Employment Interview

An employment interview is a planned interaction in which an organisation and a candidate exchange information relevant to a possible employment relationship. It has four connected purposes:

1. Prediction: estimating how the candidate may perform important job tasks.
2. Assessment: collecting evidence about qualifications, competencies, behaviour and motivation.
3. Communication: explaining the role, expectations, conditions and organisational context.
4. Candidate experience: demonstrating fairness, respect and organisational professionalism.

An interview should not be treated as a general conversation or as an opportunity to confirm an early impression. The interviewer’s task is to obtain comparable evidence from candidates against predetermined criteria.

Reliability and validity

Reliability concerns consistency. An interview is more reliable when different trained interviewers reach similar conclusions about the same evidence, or when the same interviewer evaluates candidates consistently.

Validity concerns whether the interview provides useful evidence about the construct or criterion it is intended to assess. For example, a question about handling an angry customer has greater validity for a customer-service role than a question about a candidate’s favourite sport.

Structured interviews generally improve reliability because candidates receive comparable questions, evaluation criteria and time allocations. Validity is strengthened when questions are based on a systematic job analysis and when answers are scored against job-related behavioural indicators.

Interviews nevertheless have limitations. They can be affected by impression management, nervousness, interviewer bias, cultural communication differences and socially desirable answers. They should therefore normally be combined with other appropriate selection methods, such as work samples, tests or reference checks.

2. From Job Analysis to Interview Design

Effective interviewing begins before the first candidate enters the interview. The organisation should translate job analysis into assessable requirements.

A useful design sequence is:

1. identify key duties and performance outcomes;
2. identify knowledge, skills, abilities and other characteristics required for those duties;
3. distinguish essential from desirable requirements;
4. select competencies that can be assessed through interview evidence;
5. write standardised questions and probes;
6. develop scoring anchors;
7. train interviewers; and
8. pilot and review the interview process.

For example, a job analysis for a team-leader position may identify the following requirements:

Each question should have a clear purpose. If a question does not assess a documented requirement or help the candidate understand the role, it should be removed.

3. Major Interview Formats

3.1 Structured interviews

In a structured interview, candidates are asked the same core questions in the same or substantially similar order. Interviewers use predetermined scoring criteria and generally allocate comparable time to each candidate.

Structure may range from highly standardised interviews, in which wording and probes are tightly controlled, to moderately structured interviews, in which interviewers may use approved follow-up questions. Structure does not mean that the interview must be cold or inflexible. Interviewers can remain courteous and responsive while preserving comparability.

Advantages include better reliability, improved defensibility, easier comparison and reduced influence of irrelevant personal impressions. Limitations include preparation time, possible mechanical delivery and reduced opportunity to explore unusual but relevant evidence.

3.2 Unstructured interviews

Unstructured interviews resemble open conversations. Questions vary between candidates and scoring is often informal. They may appear flexible, but they are vulnerable to bias, unequal treatment and inconsistent information. They are particularly weak when used as the sole basis for important selection decisions.

An informal opening conversation can be useful for rapport, but it should not replace a structured assessment.

3.3 Behavioural interviews

Behavioural interviewing is based on the premise that past behaviour in relevant circumstances can provide evidence of behavioural capability in future, comparable circumstances. Candidates are asked to describe what they actually did rather than what they believe they would do.

A common response framework is STAR:

• Situation: the context or circumstances;
• Task: the responsibility or objective;
• Action: what the candidate personally did; and
• Result: the outcome and, where relevant, learning.

Example question: “Tell us about a time when you had to resolve a disagreement between colleagues while meeting a deadline.”

A good interviewer probes for specific evidence: “What was your responsibility?”, “What alternatives did you consider?”, “What did you personally do?” and “What was the result?” Probes should clarify the answer, not coach the candidate toward a preferred response.

Behavioural questions are most useful when the past situation is sufficiently similar to the target job. They are less informative where the candidate has had little relevant experience or where the job context is changing rapidly.

3.4 Situational interviews

Situational interviews present a realistic hypothetical scenario and ask what the candidate would do. They assess judgement, reasoning and knowledge of appropriate actions.

Example question: “You discover that a critical report contains an error shortly before it is sent to a client. What would you do?”

Situational questions are useful for entry-level candidates, newly created roles and circumstances in which past experience may not be available. They can reveal decision processes, but stated intentions do not always predict actual behaviour. Interviewers should therefore ask for reasoning, priorities, risks and likely communication, rather than accepting a polished general statement.

3.5 Competency-based interviews

A competency is a capability relevant to effective performance, such as teamwork, customer focus, analytical thinking, integrity or leadership. Competency-based interviews use questions and scoring criteria linked to a competency framework.

Competencies should be defined behaviourally. “Professionalism” is too vague unless the organisation specifies observable indicators such as preparing accurately, meeting commitments, communicating respectfully and escalating risks appropriately.

Competency frameworks must not become lists of fashionable labels detached from the actual job. Each competency should be necessary, observable and assessable.

3.6 Panel interviews

A panel interview involves two or more interviewers. A panel may include the hiring manager, an HR representative, a technical specialist and, where appropriate, a future colleague or stakeholder.

Panels can improve evidence quality by providing multiple perspectives and reducing dependence on one person’s judgement. They can also create problems: excessive questioning, intimidating candidates, dominance by the most senior member and inconsistent scoring.

Before the interview, the chair should assign roles:

• Chair: welcomes the candidate, explains the process, manages time and closes the interview.
• Lead assessor: asks designated questions and ensures coverage of key criteria.
• Subject specialist: assesses technical or professional requirements.
• Observer or note-taker: records evidence without unnecessary interruption.

Panel members should score independently before discussion. This reduces conformity and the tendency to adopt the first or most senior opinion expressed.

3.7 Virtual interviews

Virtual interviews use video or audio communication platforms. They can increase access, reduce travel and support geographically distributed recruitment. They also introduce risks involving technology, privacy, unequal connectivity, distraction, camera assumptions and accessibility.

A professional virtual process should include:

• a tested platform and backup communication method;
• clear instructions about timing, identity verification and documents;
• a private location and secure handling of notes;
• an alternative arrangement for candidates with access or disability-related needs;
• consistent expectations about camera use; and
• a plan for disconnection or audio failure.

Interviewers should not infer motivation or professionalism merely from background décor, internet quality, eye contact with a camera or access to high-quality equipment. The assessed construct should be separated from technical circumstances whenever possible.

4. Constructing Effective Questions

A strong interview question is job-related, understandable, answerable and linked to a scoring criterion. Questions should be written in plain language and should not require candidates to disclose protected or irrelevant personal information.

Question types

Avoid double-barrelled questions, such as “How did you plan the project and communicate with the team and manage the budget?” Such questions make scoring difficult. Divide them into focused questions or select the most important competency.

Avoid leading questions, such as “You agree that customer complaints should always be escalated, don’t you?” Avoid hypothetical questions that are unrealistic or unnecessarily complex. Avoid questions about age, family plans, religion, disability, ethnicity, marital status or other protected characteristics unless a lawful and genuinely job-related requirement applies. In most situations, the appropriate question concerns availability or ability to perform an essential duty, not the personal condition behind it.

Effective probing

Probing improves evidence when it is consistent and neutral. Useful probes include:

• “What was the situation?”
• “What did you personally do?”
• “Why did you choose that approach?”
• “What was the result?”
• “What would you do differently now?”

An interviewer should avoid repeated probing of one candidate while accepting vague answers from another. Approved probes should therefore be identified during interview design.

5. Scoring Guides and Evidence-Based Decisions

A scoring guide, or rating rubric, converts interview evidence into a consistent decision process. It should identify the criterion, evidence indicators and rating levels.

A five-point guide might be structured as follows:

Generic labels are less useful than anchored descriptions. For a competency such as conflict management, a rating of 3 might require the candidate to describe a specific disagreement, listen to the parties, clarify the issue, agree a practical action and achieve a reasonable outcome. A rating of 1 might involve blaming others, avoiding the issue or escalating unnecessarily.

Interviewers should record evidence, not impressions. “Confident” is an impression; “explained a three-step approach, consulted affected staff and reduced processing delays” is evidence. Notes should be factual, relevant and sufficiently detailed to support the rating.

Weighting and decision rules

Some criteria are more important than others. An organisation may assign greater weight to essential technical competence than to a desirable additional qualification. If weighting is used, it must be determined before interviews and applied consistently.

A simple decision process is:

1. rate each criterion using the agreed anchors;
2. record evidence supporting each rating;
3. apply predetermined weights, if justified;
4. check for essential minimum requirements;
5. compare candidates against the same standard; and
6. document the final recommendation and reasons.

A high total score should not automatically compensate for failure on a critical essential requirement. Selection rules should specify such thresholds in advance.

6. Conducting the Interview

Preparation

Before the interview, confirm the job description, selection criteria, question sequence, time allocation, panel roles, accessibility arrangements and documentation requirements. Review only information that is relevant and lawfully obtained. Do not search candidates’ private social-media accounts or use unverified information as informal evidence.

Opening

The chair should welcome the candidate, introduce the panel, explain the interview structure, state the approximate duration and invite reasonable clarification. A consistent opening reduces anxiety and establishes procedural fairness.

Questioning and listening

Interviewers should ask one question at a time, listen without unnecessary interruption and allow reasonable thinking time. Silence should not automatically be interpreted as lack of ability. Clarification may be offered where the question was unclear, but interviewers should not supply substantive answers.

The interviewer should distinguish “we” from “I”. Team achievements are relevant, but the assessor needs to understand the candidate’s personal contribution. Notes should be made discreetly and should not prevent attentive listening.

Closing

The candidate should be invited to ask questions and add relevant information. The interviewer should explain the next steps and avoid promising an outcome. All candidates should receive comparable information about the process and likely timeline.

7. Interviewer Errors and Bias

Even experienced interviewers can make predictable errors.

• First-impression or primacy error: allowing early information to dominate later evidence.
• Recency error: overvaluing the last answer or candidate interviewed.
• Halo effect: allowing one positive characteristic to influence all ratings.
• Horns effect: allowing one negative characteristic to contaminate all ratings.
• Similarity bias: preferring candidates who share the interviewer’s background, interests or communication style.
• Affinity bias: favouring people with whom the interviewer feels an immediate personal connection.
• Confirmation bias: seeking evidence that supports an early judgement while discounting contrary evidence.
• Stereotyping: applying assumptions about a group to an individual.
• Contrast effect: judging a candidate against the previous candidate rather than against the job standard.
• Leniency or severity: rating everyone unusually high or unusually low.
• Central tendency: avoiding high and low ratings regardless of evidence.
• Recency of memory: relying on remembered impressions rather than documented notes.
• Attribution error: interpreting a candidate’s difficulty as a personal defect while ignoring situational factors such as a poor question or technical failure.

Bias cannot be eliminated simply by telling interviewers to “be objective”. Controls include structured questions, anchored rubrics, panel diversity, interviewer training, independent scoring, evidence-based notes, reasonable accommodations and periodic analysis of outcomes.

Diversity of the panel is valuable, but demographic diversity alone does not guarantee fair decisions. A diverse panel can still use poor criteria. The process must be designed so that every assessor applies relevant standards.

8. Ethical, Legal and Governance Considerations

Employment interviews affect access to work and income, so they carry ethical responsibilities. Core principles include:

• Job relevance: assess requirements genuinely needed for performance.
• Consistency: provide comparable questions and opportunities.
• Non-discrimination: do not disadvantage candidates because of protected characteristics or irrelevant personal circumstances.
• Privacy: collect, store and share candidate information only for legitimate purposes.
• Transparency: communicate the process accurately and avoid misleading claims.
• Accessibility: make reasonable adjustments for disability, language or technology-related barriers.
• Confidentiality: protect notes, recordings and panel discussions.
• Accountability: retain an auditable explanation for the decision according to organisational policy and applicable law.

Legal requirements differ across jurisdictions. HR professionals must follow applicable equality, privacy, employment and record-retention laws, and should obtain specialist advice when uncertain. Recording a virtual interview should never be assumed to be permissible; candidates should be informed and any required consent obtained.

Artificial intelligence may assist with scheduling, transcription or organising structured information, but automated scoring and facial, vocal or emotional analysis present serious validity, privacy and discrimination risks. An AI system may reproduce historical bias, misunderstand accents or disabilities, and make decisions that candidates cannot meaningfully challenge. Human oversight, data governance, validation, transparency and a non-automated alternative are essential where technology is used.

9. An Illustrative Case: Selecting a Customer-Service Team Leader

Background

Northbridge Services, a fictional regional utilities provider, needs a customer-service team leader. The role requires complaint resolution, work allocation, coaching, accurate record keeping and inclusive leadership. Three candidates meet the minimum qualification requirements.

Problem

In previous recruitment, managers conducted informal interviews. The successful candidates were often described as “a good fit”, but complaints about inconsistent decisions and poor documentation increased. A review found that interviewers asked different questions and frequently rewarded confident conversation rather than evidence of performance.

Analysis

The HR officer and service manager conduct a job analysis. They identify four essential competencies: customer judgement, planning, coaching and inclusive communication. They decide to use four standard behavioural questions and one situational question. Each competency receives a behavioural rubric from 1 to 5, with a minimum rating of 3 on customer judgement and planning because both are essential.

Approach

A three-person panel is trained for two hours. The chair explains the process and asks the opening questions. The service manager asks the operational questions, and the HR officer records evidence and monitors consistency. All panel members score independently before discussion.

One candidate states: “I always stay calm with difficult customers.” The panel probes for an example. The candidate describes a complaint involving a billing error, explains how records were checked, shows that the customer was updated at agreed intervals and reports that the issue was resolved without escalation. The evidence receives a rating of 4 for customer judgement.

Another candidate gives a confident but general response and cannot describe personal actions or an outcome. The panel records the absence of evidence rather than assuming that confidence indicates competence.

Outcome

The selected candidate meets all essential thresholds and achieves the strongest evidence-based result. The organisation retains the scoring sheets and provides unsuccessful candidates with respectful, general feedback. After six months, the organisation reviews performance and candidate experience data. It finds improved documentation and fewer complaints about inconsistent selection.

Learning points

The case demonstrates that structured interviewing does not remove human judgement; it directs judgement toward relevant evidence. It also shows the importance of job analysis, probing, independent scoring, minimum standards and post-selection review.

10. Improving Interview Quality Over Time

Interview systems should be evaluated rather than assumed to work. HR teams can review:

• candidate completion and withdrawal rates;
• candidate perceptions of fairness and clarity;
• consistency between interviewer ratings;
• relationships between interview ratings and later performance, where ethically and methodologically appropriate;
• adverse patterns across demographic groups, subject to privacy and legal requirements;
• quality of interviewer notes; and
• complaints, appeals or requests for accommodation.

Evaluation should be cautious. A successful employee may have benefited from training, supervision or favourable conditions, so later performance cannot be attributed solely to the interview. Similarly, group differences may reflect several stages of the recruitment process. The purpose of review is to identify and correct potential barriers, not to make unsupported causal claims.

A practical improvement cycle is: design, train, pilot, collect feedback, review evidence, revise questions and repeat. Interview guides should be updated when job duties change, but changes should be controlled so that candidates in the same recruitment campaign receive equivalent treatment.

Chapter Summary

Employment interviews are selection tools, communication events and important elements of candidate experience. Their quality depends on job analysis, relevant criteria, consistent questioning and evidence-based scoring. Structured interviews generally provide greater reliability and defensibility than unstructured conversations. Behavioural questions examine relevant past actions, while situational questions examine responses to realistic hypothetical problems. Competency-based interviews organise assessment around defined capabilities, and panel interviews can improve judgement when roles and scoring procedures are clear. Virtual interviews offer flexibility but require attention to access, privacy and technology-related fairness.

A sound interview process uses standard questions, neutral probes, behavioural scoring anchors, independent panel ratings and documented reasons. Interviewers must guard against halo effects, similarity bias, confirmation bias, stereotyping and other errors. Ethical interviewing requires job relevance, privacy, accessibility, non-discrimination and accountability. Technology and AI may support administration, but automated assessment must be carefully validated and governed. Ultimately, a professional interview is not a test of charm; it is a structured process for obtaining fair, relevant and defensible evidence.

Key Terms

Behavioural interview: An interview that asks candidates to describe what they actually did in past situations.

Candidate experience: The candidate’s perceptions and treatment throughout recruitment and selection.

Competency: A capability, expressed through knowledge, skill or behaviour, that supports effective performance.

Confirmation bias: The tendency to favour information that supports an existing judgement.

Halo effect: The influence of one positive characteristic on unrelated evaluations.

Interview rubric: A guide describing performance levels and evidence standards for scoring.

Panel interview: An interview conducted by two or more assessors.

Primacy effect: The tendency for early information to influence later judgement disproportionately.

Probe: A neutral follow-up question used to clarify or deepen an answer.

Reliability: The consistency of an assessment or measurement process.

Situational interview: An interview that asks how a candidate would respond to a hypothetical work situation.

STAR: Situation, Task, Action and Result, a framework for presenting behavioural examples.

Structured interview: An interview using predetermined questions, procedures and scoring standards.

Technical question: A question assessing job-specific knowledge or method.

Unstructured interview: An interview in which questions and evaluation vary substantially between candidates.

Validity: The extent to which an assessment supports appropriate conclusions about the capability it is intended to measure.

Virtual interview: An interview conducted through digital audio or video technology.

Similarity bias: The tendency to favour candidates perceived as similar to the interviewer.

Review Questions

Short Answer Questions

1. What is the difference between reliability and validity in employment interviewing?
2. What do the four letters in the STAR framework represent?
3. State two advantages of a structured interview.
4. What is the purpose of a scoring rubric?
5. Identify two ethical responsibilities of an interviewer.

Long Answer Questions

1. Explain how a job analysis should be translated into an interview plan.
2. Compare behavioural, situational and competency-based interviews, including the strengths and limitations of each.
3. Describe how a panel chair should organise and manage a panel interview.
4. Explain five common interviewer biases and recommend controls for reducing them.
5. Discuss the benefits and risks of virtual interviewing and propose a professional procedure.

Analytical / Application Questions

1. You are asked to interview candidates for a supervisor role using only the question, “Tell us about yourself.” Analyse the weaknesses of this approach and redesign the interview.
2. A candidate gives confident answers but no specific examples, while another gives detailed evidence but appears nervous. How should a structured panel evaluate the two candidates fairly?
3. Design four interview questions and a five-point scoring guide for one competency required in a customer-service position. Explain why each question and rating criterion is job-related.

Multiple Choice Questions with Answers

Question 1

Which feature most directly increases the structure and comparability of an employment interview?

A. Allowing each candidate to choose different topics

B. Using predetermined questions and scoring criteria

C. Selecting the most personable interviewer

D. Avoiding written notes

Correct Answer: B. Using predetermined questions and scoring criteria

Question 2

In the STAR framework, what does the letter A represent?

A. Assessment

B. Achievement

C. Action

D. Analysis

Correct Answer: C. Action

Question 3

Which question is behavioural?

A. What would you do if a customer became angry?

B. Tell us about a time you resolved a customer complaint.

C. What is your preferred working style?

D. Do you agree that teamwork is important?

Correct Answer: B. Tell us about a time you resolved a customer complaint.

Question 4

What is the main purpose of a scoring rubric?

A. To replace job analysis

B. To make every candidate receive the same final score

C. To define evidence standards for consistent evaluation

D. To allow interviewers to rely on intuition

Correct Answer: C. To define evidence standards for consistent evaluation

Question 5

A panel member prefers a candidate because they attended the same college. This is most clearly an example of:

A. Similarity bias

B. Recency error

C. Central tendency

D. Technical validation

Correct Answer: A. Similarity bias

Question 6

Which practice best supports fair panel decision-making?

A. The most senior panel member scores first and directs discussion

B. Panel members score independently before discussing candidates

C. Panel members ask unrelated personal questions

D. The panel selects the candidate with the most confident manner

Correct Answer: B. Panel members score independently before discussing candidates

Question 7

Which is the most appropriate virtual-interview practice?

A. Rejecting candidates with poor internet connections automatically

B. Treating camera eye contact as a measure of motivation

C. Providing a tested platform, instructions and a backup plan

D. Recording every interview without informing candidates

Correct Answer: C. Providing a tested platform, instructions and a backup plan

Question 8

Which statement is an evidence-based interview note?

A. The candidate seems like a good fit

B. The candidate was charming

C. The candidate described checking records, updating the customer and resolving the billing error

D. The candidate has leadership energy

Correct Answer: C. The candidate described checking records, updating the customer and resolving the billing error

Question 9

Why should an interviewer ask, “What did you personally do?” after a candidate describes a team achievement?

A. To discourage teamwork examples

B. To identify the candidate’s individual contribution

C. To test the candidate’s family background

D. To shorten the interview automatically

Correct Answer: B. To identify the candidate’s individual contribution

Question 10

Which action is most appropriate when using AI in interviewing?

A. Accepting automated facial analysis without validation

B. Using automated scores as the sole selection decision

C. Ensuring human oversight, governance and a meaningful alternative process

D. Using private social-media data to improve predictions

Correct Answer: C. Ensuring human oversight, governance and a meaningful alternative process