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Daniel Kahnemann & Amos Tversky
System 1 System 2
Solve: -5 +2 x 2 + 9 /3 - 8
What words would you choose
to describe her?
So why the buzz around analytics
now?
Technological advances - price / performance
Pervasive digitization
Artificial Intelligence, Machine Learning
Big Data and Analytics
What is Big
Data?
" One bit more data
than your system can
hold"
Source: www.cloudlendinginc.com
Analytics is a continuum …
Complexity
Perspective
Low
Past
High
Future
Bu
sin
ess
Va
lue
ReportingWhat happened?
AnalysisWhy did it happen?
MonitoringWhat is happening now?
PredictionWhat will happen?
Analytics Domains
Retail Sales
Marketing
Collections
Telecom
Financial
ServicesRisk & Credit
Consumer
Behavior
Fraud
Supply Chain
Talent / HR
Pricing
Web
Why HR Analytics?
Measure &
Manage
"What gets measured,
gets managed; what
gets managed, gets
executed"
- Peter Drucker
Linkage of
Business
Objectives to
People
Strategies
- HR Dashboards - SAP
"To clearly
demonstrate the
interaction of business
objectives and
workforce strategies"
Return on
Investment
- David Foster
"The business demands
on HR are increasingly
going to be on
analysis just because
people are SO
expensive"
Performance
Improvement
- CedarCrestone
"Global organizations
with workforce
analytics and
workforce planning
outperform all other
organizations by 30%
more sales/employee"
The HR Analytics Continuum
Complexity
Perspective
Low
Past
High
Future
Bu
sin
ess
Va
lue
Head Count
Attrition
Training
Payroll reports Performance
Tracking
Requisition
TrackingTurnover Ratio
Accession Ratio
Low performer
managementPromotion Ratio
Hiring Fit
Hiring No-shows
Prediction
Attrition
Prediction
Attrition
Segmentation
Employee
Segmentation
Candidate
Stickability
Prediction
High Performer
Segmentation
Workforce
Planning
Informal Network
Analysis
Voice of Employee
Analysis
Recruitment
Engagement
Retention
What metrics should we track?
Recruitment RetentionPerformance Management
CareerManagement
TrainingWorkforce
Planning
Comp &
BenefitsOrg.
Effectiveness
Measuring Human Resources
Management
Over 100 different metrics
across
Hiring and Staffing
Compensation and Benefits
Training and Development
Employee Relations and
Retention
So how about some recruitment-
related metrics to start with?
Cost
•Cost per hire
•Source cost per hire
•Advertising cost per hire
•Agency cost per hire
•Referral bonus per hire
•Unsolicited no-cost per hire
•Special costs per hire
• Interview costs
•Source cost per hire per interview
•Sign-on bonus factor
Time
•Response time
•Average response time per hire
•Time to fill
•Time to start
•Referral factor
Career Development
•Job posting response rate
•Job posting response factor
•Job posting hire rate
• Internal hire rate
•Career path ratio - promotions
•Career path ration - transfers
Efficiency Metrics
•Average interview length
•Hire rate
•Hit rate
Quality
•Quality of Hire
•Recruiter Effectiveness
The early days - Finding the right
people
Spent hours screening resumes
from job portals like Monster.com
Built an applicant tracking system
that checked candidate resumes
against a database of Googler
resumes
Idea was to get more realistic
"backdoor" references
Also looked at innovative ways to
identify smart peopleThe solution to the first riddle will land you at http://7427466391.com/. On this
page you’ll find the following:
“Congratulations. You’ve made it to level 2. Go to www.Linux.org and enter
Bobsyouruncle as the login and the answer to this equation as the password.”
f(1)= 7182818284
f(2)= 8182845904
f(3)= 8747135266
f(4)= 7427466391
f(5)= __________
Initial data analysis & insights
• Academic grades did not correlate well with performance except for the first 2-3 years.
Analysis
• Stopped asking for academic transcripts except for fresh graduates.
Actions
• Did not see any discernible drop in performance because of this.
Results
Initial data analysis & insights - 2
• Google's hiring was focused on minimizing "false positives", that is, candidates who looked good at first glance but turned out to be poor performers later.
• Their hiring took a long time - 250,000 hours to hire 1000 people/year
Analysis
• Looked at referrals as a way of hiring great candidates.
Actions
• In the initial years - >50% of hires were through referrals
Results
Employee referrals
•The rate started to fall after 2009
Challenge
•Could be because rewards weren’t high enough.
Hypothesis
•Google increased the reward for successful referrals thinking that it would help to bring up the referral rates
Actions
•They found however, that this brought NO change in the decline.
Results
•Rewards are extrinsic motivators
•People were more motivated by intrinsic factors like pride in their place of work
Analysis
Employee referrals
• Exhausted known networks
Challenge
• Started using aided recalls
Action
• Volume of referrals increased by 33%!
Results
Cultivating the best people
• Requirement of ~300,000 referrals/year vs <100,000 they were getting
Challenge
• Realized that the very best people are not looking for work. They are happy
Analysis
• Rejigged their staffing team and equipped them with a home-grown tool called gHire to cultivate people across different organizations.
Action
• >50% of Google's hires are found by this in-house team!
Results
Hiring the best people
•People during an interview make up their mind in the first 10 seconds
•Rest of the interview is spent finding corroborative evidence
•CONFIRMATION BIAS!
Challenge
•Most interviews are unstructured.
•Unstructured interviews can predict only ~14% of an employee's performance
•Work sample test predicts ~29% of performance
•General cognitive tests predict ~26% of performance
•biased towards white males (at least in the US) !
•Structured interviews were found to be as good at predicting performance as cognitive tests
Analysis [paper by Frank Schmidt & John Hunter]
•Use a combination of behavioral and situational structured interviews with assessments of cognitive ability, conscientiousness and leadership
• Identified key attributes essential for "Googleeyness"
Actions
•Consistent scoring mechanism that allows people to compare across interviewers. .
Results
Hiring the best people - 2
•Hiring was taking too much time – median of 90-180 days
Challenge
•What should be the number of rounds of interviews?
• Found that 4 interviews were enough
Analysis
•Brought down the number of interviews from 25 to 4
Action
•Changed median time to hire from 90-180 days to 47 days!
Results
Revisit assumptions - Then test!
Looked for people with high scores who were rejected
2010 - ran 300,000 rejected candidates through the system
Filtered 10,000 and chose 150
Hit rate of 1.5% > 0.25% - Google's hit rate
Tested False Negatives as well!
Revisit program
•Feed resumes of all past candidates through algorithm
Common Keywords
•Assess common keywords found
Score resumes
•Score keywords based on their occurrences in rejected vs successful resumes
Test
•Score resumes over next 6 months against weighted keywords
Some Examples
Best Buy
Could precisely identify a 0.1% increase in employee engagement among employees at a particular store.
This value was identified at more than $100,000 in the store's operating income.
Oracle / Sprint
Oracle was able to predict which top performers would leave and why.
This information is now driving key global policy changes for retaining key performers.
Sprint has identified the factors that best foretell which employees will leave after a
relatively short time.
Dow Chemicals
Has evolved its workforce planning over the past decade, mining historical data on its 40,000 employees to forecast promotion rates, internal transfers, and overall labor availability.
Dow uses a custom model to segment its workforce and calculates future headcount by segment and level for each business unit.
Dow can engage in "what if" scenario planning altering assumptions on internal variables.
State-of-the art for Predictive
Analytics in Recruitment
Hiring Fit
Models
Candidate
Stickability
Predictions
Hiring No-
Shows
Predictions
Workforce
Planning
Personality
Matches
Predictive Modeling - Watchouts!
All models are wrong! Some are less wrong than others
Predictive Models cannot be used to predict rare, black-swan events
Models can’t predict what is not already present in the training data.
Building the right model depends on the question that needs to be answered.
This in turn determines the data that needs to be gathered.
Even with enough data, we might not have the “right” data to build a good predictive model.
Exploratory data analysis and Feature Selection is an extremely critical part of the model building workflow.
Always check model performance using any of confusion matrix, p-values, ROC curve etc.
Keep updating your model as and when new data comes in.
Keys to success in HR Analytics
Start with the business problem in
mind
Develop culture of
data-driven decision making
Empower line leaders
Be transparent
Analytics is a journey,
not an end
Don't wait for the perfect
data
You don't HAVE to
automate everything -at least at
first
Deliver Actionable
Business Information