Application Activity 1. If you were Leslie, who would you hire to fill Golden State Blended's three open positions? Let's say Jay and his executives have a good idea of what successful performance at their company looks like, and they want to use a cutoff score of 12 for the predicted criterion (i.e., performance). This means that no matter how many positions are available, they won't hire anyone whose predicted criterion score is under 12. Based on this cutoff, which three people would Leslie recommend that Jay hire--and why? (3-5 sentences) 2. Jay is considering adding a structured interview to the company's selection procedure and wants to know if scheduling and conducting interviews will be worth the additional resources. In statistical terms, he wants to know if the interview will increase prediction accuracy above that already explained by the work sample and cognitive ability test. How should Leslie examine this question statistically? (3-5 sentences) Model from page 4: y = 1.05 + 1.60(WORK SAMPLE SCORE) + 0.85(COGNITIVE ABILITY TEST SCORE) Table from page 6: Applica Work Cognitive Ability Predicted n Sample Test Performance Qikun 3 7 11.80 Andrea 5 4 12.45 Navya 7 6 17.35 Charles 4 3 10.00 Paul 7 2 13.95 Qikun: ypredicted = 1.05 + 1.60 (3) + .85 (7) = 11.80 Andrea: ypredicted = 1.05 + 1.60 (5) + .85 (4) = 12.45 Navya: ypredicted = 1.05 + 1.60 (7) + .85 (6) = 17.35 Charles: ypredicted = 1.05 + 1.60 (4) + .85 (3) = 10.00 Paul: ypredicted = 1.05 + 1.60 (7) + .85 (2) = 13.95Applied Data Analysis in Psychology I WEEK 6 ILLUSTRATED SCENARIO SLIDE 1 Visual: image ofjay at Golden State Blended Text: Golden State Blended is a specialty cement manufacturing company. The company is only two years old, but has already had great financial success thanks to an innovative ingredient in its products. As a result, the company is growing very quickly, and Jay, the company's president, anticipates needing to hire more production workers to account for increased production demands. SLIDE -'2 Visual: Jay shaking hands with Leslie Text: Jay and his executive management board would like to put in place a selection system in place that allows them to make sound hiring decisions. So, they contract with Leslie, an employee selection consultant who will help them to develop a selection system for Golden State Blended. Leslie tells Jay that she can collect data that will allow him to make precise predictions about who will perform well on thejob and select them accordingly. Doing so will save him time and energy, and support the legal defensibility ofthe chosen assessment methods. Jay is thrilled by the possibilities! SLIDE 3 Visual: Leslie looks out over the factory floor. Thought bubble: \"lt'sjob analysis time!\" Text: Leslie's first step is to conduct a 'ob analysis with current employees to understand the knowledge, skills, and abilities required for effective performance on thejob. Based on the results ofthejob analysis, she recommends that, moving forward, Golden State Blended use two different predictor tests that are relevant to the performance domain: 1) a work sample (i.e., a test of each applicant's ability to perform a simulated onthe job exercise) and 2) a cognitive ability test. Page |1 Applied Data Analysis in Psychology I SLIDE 4 Visual: Two panels: 7. Employee in an o'ice taking a paperandpencil cognitive ability test and/Same employee performing work sample on piantfioor using a machine and 2. Leslie and another person are observing w/ clipboards Text: Her next step is to conduct a criterionrelated validation study. Specifically, Leslie uses a concurrent validation study design where she administers the work sample and cognitive ability tests to employees currently in the position for which the tests are being considered as selection tools. She also collects criterion (i.e., performance) data from these same employees. SLIDE 5 Visual: Leslie doing math on a white board. Text: Next, Leslie establishes that the test scores together accou nt for sig nicant variance in the performance criterion using R2 and the Fstatistic. The multiple linear regression equation she forms follows the general form ofthe equation for two predictors (yt- = bu + quH + b2X2l): and allows herto estimate how well a set ofthe two test scores forecastsjob performance: y = 1.05 + 1.60 (work sample score) + .85 (cognitive ability test score) SLIDE 6 Visual: lesiie other computer. This table is on her screen: Work Sample Cognitive Ability Test Predicted Performance Page l2 MASON PSYC 601 UNIVERSITY Applied Data Analysis in Psychology I Qikun 11.80 Andrea 5 A 12.45 Navya 5 17.35 Charles 4 10.00 Paul 2 13.95 Qikun: ypredicted = 1.05 + 1.60 (3) + .85 (7) = 11.80 Andrea: ypredicted = 1.05 + 1.60 (5) + .85 (4) = 12.45 Navya: Ypredicted = 1.05 + 1.60 (7) + .85 (6) = 17.35 Charles: ypredicted = 1.05 + 1.60 (4) + .85 (3) = 10.00 Paul: y predicted = 1.05 + 1.60 (7) + .85 (2) = 13.95 Text: Leslie then uses this regression equation to make selection decisions for Jay. To do this, she enters each individual applicant's predictor scores into the regression equation and computes their predicted performance. She creates a table that shows the predictor scores for each of the five applicants, as well as the predicted performance scores derived from their work samples and cognitive ability test scores. SLIDE 7 Visual: Jay sitting at his desk, looking a bit nervous. Thought bubble: "I hope this works!" Text: Meanwhile, Jay needs to hire three people ASAP to fill their production void. Leslie's hiring recommendations can't come soon enough! Page | 3