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Published byLeonard Pierce Modified over 9 years ago
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Selection
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Types of Assessment Biographical Information Interviews Work Samples Letters of Recommendation Psychological Tests
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Biographical Data Good questions are about events that are: historical external discrete controllable (by the individual) verifiable equal access job relevant non-invasive (Mael, 1991) Rationale vs. empirical method
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Biographical Data Strong criterion validity drug use, criminal history predicts dysfunctional police behavior (Sarchione et al., 1998) not redundant with personality (McManus & Kelly, 1999) Measurement issues Generalizability Faking Fairness Privacy concerns
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Interviews Structured vs. Unstructured Info. gathering vs. interpersonal behavior sample Situational interview “How would you handle a circumstance in which you needed the help of a person you did not like?” Measurement issues structured has more criterion related validity value of unstructured? Illusion of validity Guidelines for structured interviews
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Work Samples perform a task under standardized conditions historically were for blue collar jobs e.g. use of tools, demonstrate driving skills white collar examples speech interview for foreign worker, test of basic chemistry knowledge, Measurement issues high criterion validity if skills are similar to job costly to administer work best with mechanical, rather than people-oriented tasks
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Assessment Centers Realistic tasks done in groups Assessed by multiple of raters rating multiple domains Multiple methods in basket group exercise leaderless group exercise Strong criterion validity (e.g., teachers, police) overall scores predict job performance Measurement issues costly to administer different ratings on a task too highly correlated dimension ratings not correlated strongly across tasks fix? focus on behavior checklists and rater training
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Drug Testing opinion? People are more accepting of it if job involves risks to others (Paronto, et al., 2002) Measurement issues reliability is very high, but not perfect Validity? Normands, Salyards, & Mahoney (1990) over 5000 postal service applicants those who tested positive had 59% higher absenteeism, 47% more likely to be fired no differences in injury or accidents
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Letters of Recommendation ever written a letter of recommendation for someone? worst criterion validity of all commonly used assessment tools some use for screening extremely bad candidates Measurement issues restriction of range writer bias/investment
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Psychological Test Characteristics Group vs. individual Objective vs. open-ended Paper & pencil vs. performance Power vs. speed
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Psychological Test Types Ability Tests Cognitive ability Psychomotor ability Knowledge and skill or achievement Integrity Personality Emotional Intelligence Vocational interest
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Integrity Tests Designed to predict whether employee will engage in counterproductive work behavior (CWB) overt vs. personality (covert) Better at predicting general CWB and performance than theft (r =.30 -.40) Measurement issues difficult to measure criteria! proprietary issues legal and privacy issues faking
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Personality Tests measures predispositions toward particular feelings and behaviors not all tests are based on past research many have shown incremental validity e.g., predict when controlling for IQ Measurement issues job relevance not easily/often faked or a problem if faked (e.g., job faking too)
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The Big Five Inventory Openness Highs: imaginative, creative, and to seek out cultural and educational experiences. Lows: more down-to-earth, less interest in art & more practical. Conscientiousness Highs: methodical, well organized and dutiful. Lows: less careful, less focused & more likely to be distracted Extraversion Highs: energetic and seek out the company of others. Lows (introverts): tend to be more quiet and reserved. Agreeableness Highs: tend to be trusting, friendly and cooperative. Lows: tend to be more aggressive and less cooperative Neuroticism Highs: prone to insecurity and emotional distress. Lows: more relaxed, less emotional and less prone to distress.
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Intelligence Tests Have greatest validity Often very easy and inexpensive to use Wonderlic Personnel Test 50 items 12 minute time limit Sample questions Interpreting scores? Scores vary as a function of race and ethnicity Ethical issues? Face validity?
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Determining “Test” Utility Goal of testing is to make decisions about individuals on the basis of the amount of a given trait they possess. A test should give us a “true” picture of a person’s traits Test Score = True Score + Error
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Reliability and Validity Reliability Test-retest Parallel (Alternate) forms Internal Consistency Validity Face Content Criterion-related Construct-related
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Factors Influencing Selection Quality Three factors influence selection quality Predictor validity Selection ratio Base rate
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Selection Decisions Reject Accept Predictor Score Criterion Performance Successful Performance Unsuccessful Performance r =.60 A B C D br =.50 sr =.50 True Negatives False Positives False Negatives r =1.00 True Positives sr =.25
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Effect of Selection Ratio on Predictor Utility Reject Accept Predictor Score Criterion Performance r =.40 Selection Cutoff Score sr =.50sr =.10sr =.95
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Effect of Predictor Validity on Predictor Utility Predictor Score Criterion Performance r =.40 Selection Cutoff Score sr =.50 r =.80r =.00
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Selection Strategies 3 Basic Strategies Multiple Regression Assumes relationships between predictors and criterion are linear Assumes having a lot of one attribute compensates for having little of another Multiple Cutoff Applicants must achieve a set, minimum score on all predictors Multiple Hurdle Applicants must achieve satisfactory scores on a number of predictors that are administered over time.
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