Personnel selection.ppt
- Количество слайдов: 63
Personnel Selection Organizational psychology
Recruitment and Selection Process Step 1 Step 2 Planning for Recruitment & Selection Recruitment: Locating Prospective Candidates • • Job Analysis Job Qualifications Job Description Recruitment & Selection Objec. • Recruitment & Selection Strategy • Internal Sources • External Sources Step 3 Selection: Evaluation and Hiring • Screening Resumes and Applications • Initial Interview • Intensive Interview • Testing • Assessment Centers • Background Invest. • Physical Exam • Selection Decision and Job Offer
Selection Process • Measure applicants’ qualifications • Select the best applicant to hire • For each selection method: – Describe the selection method – Rate the validity of the selection method: • • Poor: validity coefficient = r ≈. 00 Moderate: validity coefficient = r ≈. 25 Good: validity coefficient = r ≈. 50 Great: validity coefficient = r ≈. 75 • Evaluation of process
Selection Errors 1. False Negative – Rejecting candidate who would have been successful 2. False Positive - Accepting candidate who fails on job (more costly)
True False Negatives Positives Reject Accept High Validity Unsatisfactory Satisfactory True False Negatives Positives Performance Unsatisfactory Satisfactory Performance r =. 80 r =. 00 False True Negatives Positives True False Negatives Positives Reject Accept Poor Validity
Approach for Examining Selection Methods • Describe the selection device and the information that can be collected about applicants • Describe how to develop and use the device appropriately • Describe the frequency of use, reliability, validity, costs, adverse impact, and face validity (applicant reactions) of each device • Depth and breadth of selection plan – Costs, who is involved, time frame, which jobs – Internal vs. external selection
Selection Methods • Ability Tests • Job Knowledge Tests • Performance Tests and Work Samples • Personality Tests • Integrity Tests • Structured Interviews • Assessment Center
Application Blanks & Résumés • Routinely used • Focuses on basic factual information: – Education, training, work history, skills, accomplishments, etc. • Used to screen out applicants who don’t meet minimum qualifications in terms of education, experience, etc.
Application Blanks • Validity: poor (typically r <. 20) – Why? • Problems: – Lack of agreement what to look for – Possible discrimination – Need to cross validate – Keys are not stable over time, need to update
Biodata Questionnaires • Questionnaire on applicant’s life experiences – Example questions: • Did you ever build a model airplane that flew? • When you were a child, did you collect stamps? • Do you ever repair mechanical things in your home? – Answers are scored according to a scoring key • Validity: moderate (r ≈. 30)
Experience & Accomplishments Questionnaires • Questionnaire focuses on applicant’s job-related experiences & accomplishments – xample questions: • For an Information Systems Analyst position: – Describe the types of IT systems problems you have encountered. – Describe your experience in testing hardware, software, or systems. – Validity: moderate (typically content validity)
Employment Interviews • • Universal selection procedure Strong effect on selection decisions Preferred by managers Psychometric problems: – No consistency of questions – Questions unrelated to jobs – No objective scoring system – No interviewer training • Overall, the more standardized the interview, the better
INTERVIEWS CAN. . . • Assess Certain Characteristics • Assess Organisational & Team Fit • Satisfy Social Exchange Function
Employment Interview • Validity as typically done: poor (r <. 20) • Types of employment interviews: – few (if any) pre-planned questions; commonly used; poor validity – some pre-planned questions, but with flexibility to pursue lots of follow-ups; moderate validity – Structured: all questions are pre-planned; every applicant gets the same interview; some follow-up probes; answers are evaluated using numeric rating scales; good validity
Structured Interviews • Standardized method of asking same job related questions of all applicants • Carefully planned and constructed based on job analysis • Responses are numerically evaluated • Detailed notes are taken
Example of Structured Interviews – Situatonal: • Hypothetical scenarios • A sign of how they will behave • How would the interviewee behave in a critical situation? – Behavioral: • Past incidents • A sample of work behavior – better predictor • How did the interviewee behave in a specific job situation in the past? – Multiple raters – Composite ratings used to make decisions
PROBLEMS WITH INTERVIEWS • • Unstructured & Unplanned Untrained & Biased Interviewers Same Sex Bias Structured Means Standardised or Artificial & Inflexible
Why Interviews are Often not Valid Assessments • Poor wording of questions – No systematic scoring system used by interviewers —very subjective – Applicants have been trained to give the appropriate responses to such open-ended questions – Interviewer has no way to verify this information in short period of time of interview
Attempts to Improve the Interview • Training Interviewers • Development of Appropriate Techniques: – Situational Interview – Behavior Description Interview
S. T. A. R. Situation or Task Describe situation—be specific not general. Provide enough detail for the interviewer to understand. Action You Took Describe action you took— keep focus on you. Even if discussing a team project, talk about what you did. Results You Achieved Describe what happened, how the event ended, what you accomplished, and what you learned. “STAR Interviewing Response Technique, ” www. quintcareers. com
Central Issues in Interview Training Programs • Creating an open • communication • atmosphere • • Delivering questions consistently • Maintaining control of the interview • • Developing good speech behavior Learning listening skills Taking appropriate notes Keeping the conversation flowing and avoiding leading or intimidating the interviewee Interpreting, ignoring, or controlling the nonverbal cues of the interview
Evaluation of the Interview • Unstructured interviews used frequently; structured ones used less frequently • More structured, more reliable and valid • Structured interviews are highly correlated with cognitive ability tests • Mixed adverse impact • Structured interviews are costly to develop and use • Might be appropriate for measuring person/organization fit
Ability Tests • Measure what a person has learned up to that point in time (achievement) • Measure one’s innate potential capacity (aptitude) • Up to 50% of companies use some ability testing
Ability Tests • • Mental (Cognitive) Ability Tests Mechanical Ability Tests Clerical Ability Tests Physical Ability Tests
Cognitive Ability Tests - Main purpose: to determine one’s level of aptitudes depending on setting - Measure aptitudes relevant to the job - short, group administration - excellent predictor of job and training performance
Typical Cognitive Abilities • Memory Span • Numerical Fluency • Verbal Comprehension • Spatial Orientation • Visualization • Figural Identification • Mechanical Ability • Conceptual Classification • Sematic Relations • General Reasoning • Intuitive Reasoning • Logical Evaluation • Ordering
Example of Ability Tests - Personnel Test (measures “g”) - 50 items, 12 minutes - multiple choice - Items cover verbal, math, pictorial, analytical material - Highly reliable (alternate forms >. 90) - Correlated with job performance measures
Examples of Mental Ability Tests • • Otis-Lennon Mental Ability Test General Aptitude Test Battery (“G”) Employee Aptitude Survey IQ
Advantages of Cognitive Ability Tests • Efficient • Useful across all jobs • Excellent levels of reliability and validity (. 40 -. 50) – Highest levels than any other tests – Estimated validity: • . 58 for professional/managerial jobs • . 56 for technical jobs • . 40 for semi-skilled jobs • . 23 for unskilled jobs – More complex job = higher validity
Disadvantages of Cognitive Ability Tests • Lead to more adverse impact • May lack face validity – Questions aren’t necessarily related to job • May predict short-term performance better than long-term – can do vs. will do
Frequently Used General Mechanical Ability Tests • Bennett Mechanical Comprehension Tests • Mac. Quarrie Test for Mechanical Ability • What they generally measure: – Spatial visualization – Perceptual speed and accuracy – Mechanical information
Tests of Mechanical Comprehension - better than “g” for blue-collar jobs Good face validity Criterion validity w/ mech. job performance E. g. , Bennett Mechanical Comprehension Test - 68 items - 30 minutes - Principles of physics & mechanics - Operations of common machines, tools, & vehicles - High internal consistency - Good criterion validity w/ job proficiency & training
Clerical Ability Tests Predominately measures perceptual speed and accuracy in processing verbal and numerical data Examples: Ø Minnesota Clerical Test Ø Office Skills Test
Clerical Tests - 2/3 of companies use written tests to hire & promote 60 -80% of tests are clerical Specific vs. general E. g. , Minnesota Clerical Test - 2 subtests: number comparison & name comparison - Long lists of pairs of numbers/names (decide if same - Strict time limit - Reliable & valid for perceptual speed & accuracy - Good face validity
Physical Ability Tests • Most measure muscular strength, cardiovascular endurance, and movement quality • Areas of concern: – Female applicants – Disabled applicants – Reduction of work-related injuries
Ability Tests and Discrimination • Differential Validity – Are employment tests less valid for minority group members than nonminorities? – Research has found that differential validity does not exist
Comparison of Mental Ability Tests and Other Selection Instruments Mental ability tests have high validity and low costs compared to other methods Biodata, structured interviews, trainability tests, work samples, and assessment centers have equal validity, less adverse impact, and more fairness to the applicant, but cost more
Work Sample Tests • How do you perform job-relevant tasks? • 2 characteristics: – Puts applicant in a situation similar to a work situation – measures performance on tasks similar to real job tasks. – Is it a test of maximal vs. typical performance? • Range from simple to complex
Work Sample Tests – Examples: • For telephone sales job, have applicants make simulated cold calls • For a construction job, have applicants locate errors in blueprints
Work Sample Tests • Advantages: – Highest validity levels (r =. 50 s) – High face validity – Easy to demonstrate job-relatedness • Disadvantages: – Not appropriate for all jobs – Time-consuming to set up and administer – More predictive in short-term – Cannot use if applicant is not expected to know job before being hired
Measuring Personality - Early research showed no validity Recent research: 3 of Big 5 are predictive Criterion validity: . 15 -. 25 (less than “g”) Susceptible to faking – does not affect validity in predicting - Useful when dependability, integrity, responsibility are determinants of job success
Myers-Briggs Type Indicator (MBTI) • Dimensions of personality: • Introversion Extroversion: source of energy • Intuition Sensation: innovation vs. practical • Thinking Feeling: impersonal principles vs. personal relationships • Judging Perceiving: closure vs. open options – Validity: poor for selection; might be okay, if carefully used, to help a team work better together
The Big 5 Personality Dimensions – Validity: typically moderate for selection (r ≈. 25 with measures of overall job performance) – But, validity of personality inventories is hard to generalize • Some dimensions of personality may correlate more strongly with particular aspects of a particular job • Extraversion → success in sales • High conscientiousness & high openness to experience → success in job training • Low agreeableness, low conscientiousness, & low adjustment → more likely to engage in counterproductive work behaviors (e. g. , abuse sick leave, break rules, drug abuse, workplace violence)
Advantages of Personality Inventories • Intuitively appealing to managers (e. g. , MBTI) • No adverse impact – Don’t show rates of differential selection • Efficient • Moderate reliability and validity – Validity =. 20 -. 30
Disadvantages of Personality Inventories Inventorie • Response sets – Lie or socially desirable responding • All traits not equally valid for all jobs
Integrity Testing • Why do it? – Employee theft estimated between $15 and $50 billion in 1990’s – Employee theft rate by industry: 5 to 58% – 2% to 5% of each sales dollar charged to customers to offset theft losses
Integrity Testing – urpose: - theft is expensive also want to avoid laziness, violence, gossip Honesty may not be a stable trait Honesty testing is controversial May depend on the situation (perceived unfairness) - Viewed as coercive and inaccurate - Honesty is a strong value in our society
Honesty & Integrity Tests • Employee Polygraph Act (1988) prohibits (with some exceptions) the use of polygraph tests of applicants or employees • Replaced by paper-and-pencil tests: – Overt integrity tests: measures attitudes about dishonest behavior • Question: “Everyone will steal if given the chance. ” • Examples: – Pearson Reid London House: Personnel Selection Inventory (PSI)
Disadvantages of Honesty & Integrity Tests • Fakable • High rates of false positives • Some states (e. g. , Massachusetts) ban it
Evaluation of Integrity Tests • False positives: 40 to 70%, especially if cutoff scores are set high • Validity: difficult to determine criteria to validate against (estimates ~. 13 to. 55) • Usefulness depends on the base rate of theft occurring in particular industries (estimates range from 5% to 58%) • Faking: not a major issue, but probably more so for overt tests • Applicant reactions are usually negative
Assessment Center A procedure for measuring performance with a group of individuals (usually 12 to 24) that uses a series of devices, many of which are verbal performance tests
Behavioral Dimensions Frequently Measured in Assessment Centers • Oral Communication • Decisiveness • Planning and Organizing • Initiative • Tolerance for stress • Delegation • Adaptability • Control and Monitoring • Tenacity
ASSESSMENT CENTRES • Work-sample test for manager positions – Measures: leadership, communication, decisiveness, organizing & planning, etc. • Developed for WW 2 Officer Selection Board • Simulation Exercises Measure Competencies • Various Techniques, Candidates, Assessors & Competencies
Frequently Used Performance Tests in Assessment Centers • • In-Basket Role Plays Leaderless Group Discussion Case Analysis
Evaluation of Assessment Centers • • Adverse Impact: not much Validity: . 36 and. 54 (performance tests) Acceptance to applicants: High Costly to develop and run
DISADVANTAGES OF ASSESSMENT CENTRES • Poorly Defined Competencies & Exercises • Poor Training & Selection of Assessors • Poor Selection & Briefing of Candidates
360 Degree Instruments When a 360 makes sense • It is the best method to measure external behaviors. Things that are best observed and judged by others.
Problems With 360 Degree Instruments Problems with using a 360: –Honesty –Knowledge: » observer’s biases and perceptions influence ratings » abilities can be hidden
The Problem of Observer Reports
THE IMPORTANCE OF VALIDITY • Face Validity • The method looks plausible • Criterion Validity • The method predicts performance • Content Validity • The method looks plausible to experts • Construct Validity • The method measures something meaningful
Personnel Selection: Which are Most Predictive? AVERAGE VALIDITY A WORK SAMPLE TESTS . 38 B INTELLIGENCE TESTS . 38 to. 51 C ASSESSMENT CENTERS . 41 D PEER/SUPERVISORY RATINGS . 41 to. 49 E WORK HISTORY . 24 to. 35 F UNSTRUCTURED INTERVIEWS . 15 to. 38 G PERSONALITY INVENTORIES . 15 to. 31 H REFERENCE CHECKS . 14 to. 26 I TRAINING RATINGS . 13 to. 15 J SELF RATINGS . 10 to. 15 K EDUCATION / GPA . 00 to. 10 L INTERESTS / VALUES . 00 to. 10 M AGE to. 54 to. 50 . -. 01 to. 00
PREDICTIVE VALIDITY & SELECTION TESTS – Combinations of methods • “g” + work samples =. 63 • “g” + structured interview =. 63 • “g” + integrity tests =. 65
Personnel Selection Organizational psychology