Using Schedules of Reinforcement to Increase and Maintain Productive Behavior

Invisible Reinforcers and Contingencies

• Every behavior at work is affected by consequences delivered on some schedule of reinforcement, many of which are invisible to casual observation.
  • Sources: peers, physical environment, personal history (childhood onward), organizational systems.
  • These schedules can foster either productive or counter-productive, change-resistant patterns.
• Diagnostic tools:
  • $\text{PIC}/\text{NIC}$ analysis (Positive/Immediate/Certain vs Negative/Immediate/Certain).
  • Functional (contingency) analysis brings hidden schedules to light and guides intervention.
• Eisenberger’s concept of "learned industriousness" is cited as related background (QR code reference in text).

Core Organizational Challenges Requiring Schedule Expertise

• $1$ Increase desired (productive) behavior.
• $2$ Decrease problem behavior.
• $3$ Maintain high performance over time.
• Each challenge often demands a different schedule because each schedule produces a distinct response pattern.

Six Basic Schedules of Reinforcement Used at Work

• Fixed Interval (FI)
• Variable Interval (VI)
• Fixed Ratio (FR)
• Variable Ratio (VR)
• Fixed Time (FT)
• Variable Time (VT)
• All other work schedules are variations or combinations of these six.

Fixed Interval (FI)

• Definition: First response after a constant time period is reinforced.
• Common workplace examples:
  • Lunch whistle, payroll dates, month-end accounting reports, televised news broadcast times.
  • Holidays: Christmas, Thanksgiving, Ramadan, etc.
• Characteristic performance pattern:
  • Low activity immediately after reinforcement.
  • Gradual acceleration (“scallop”) as next interval end approaches.
  • Fast extinction once reinforcement is removed.
• Appropriate uses:
  • Deliverables that must occur at a specific moment, not early or late (e.g., news broadcast).
• Drawbacks:
  • Produces fluctuating effort; managers may observe either inactivity or frantic bursts depending on sampling moment.

Variable Interval (VI)

• Definition: First response after an unpredictable, variable time period is reinforced.
• Examples:
  • Mail delivery (average 10 a.m. but ranges 9–12).
  • Shipping/receiving, waiting for customers, airport security monitoring.
• Performance pattern:
  • Slow, steady, consistent responding.
  • Good for vigilance, patience, monitoring duties.
• Extinction: Slower than FI but lower overall response rate than ratio schedules.

Fixed Ratio (FR)

• Definition: Reinforcement after a set number of responses.
• Variations: $\text{FR1},\ \text{FR10},\ \text{FR30}$, etc.
• Examples:
  • Commission on every sale (FR1).
  • Bonus after every 10th sale.
  • Premack principle activities (“When you finish X, you may do Y”).
• Performance pattern:
  • High rate of responding.
  • Brief post-reinforcement pause (celebration) proportional to ratio size.
  • Relatively fast extinction when reinforcement stops.

Variable Ratio (VR)

• Definition: Reinforcement after an unpredictable number of responses, averaging to a set value.
• Classic example: Slot machines.
• Workplace example: Sales—each pitch might close a deal.
• Performance characteristics:
  • Highest rates of productivity.
  • Very persistent; slowest extinction curve.
  • Creates strong emotional investment and optimism (“passion”).
• Caveat: Not suitable where patience, precision, or safety outweigh speed.

Fixed Time & Variable Time (FT / VT)

• Key difference from FI/VI: No response requirement; reinforcement delivered strictly by time.
• Essentially non-contingent reinforcement.
• Research insights:
  • In education, FT/VT of preferred stimuli can reduce disruptive classroom behavior.
  • In organizations, broad FT/VT benefits (automatic annual raises, equal perks) can reduce task-oriented performance and foster an entitlement mentality.
• Practical implication: Rely primarily on contingent schedules; use FT/VT cautiously.

Selecting Schedules for Workplace Goals

• Match schedule to performance type:
  • Timed punctual outputs → $\text{FI}$.
  • Continuous vigilance → $\text{VI}$.
  • High production volume → $\text{FR}$ or $\text{VR}$.
• Avoid blanket application of VR just because it yields high rates; mis-matched schedules cause quality, safety, or morale issues.
• Example missteps:
  • Converting piece-rate (FR) positions to straight salary (FI) “for simplicity” usually lowers both quantity and quality unless quality contingencies are separately engineered.

Progressive Schedules (PR / PI)

• Progressive Ratio (PR): Required responses increase each time $\to$ e.g.
  $5, 10, 15, \dots$ until “break point.”
• Observed naturally in gold prospecting: early rich strikes → later diminishing returns.
• Rarely applied deliberately in typical corporate environments.

Overlaying & Mixing Schedules

• If you cannot alter a company-wide FI pay system, layer another schedule on top.
  • Sales staff on salary: add spot bonuses (VR) for early-period sales.
  • Teachers on weekly tests (FI): add surprise quizzes (VI) or bonus points (FR) to distribute study time.
• Mix of reinforcers is acceptable; overlay schedule can use praise, points, merch, privileges, etc., not just money.

Empirical Findings on Incentives vs Hourly Pay

• Matthews & Dickinson (2000):
  • Compared $0\%$, $10\%$, $100\%$ incentives on computer inspection task.
  • Incentive groups worked longer than base-pay only; magnitude of incentive did not affect time-on-task.
• Bucklin, McGee & Dickinson (2003): Individual incentives (FR) outperformed hourly pay (FI) on computerized tasks.
  • Supports higher productivity under ratio-based contingencies.

Thinning: Changing a Schedule to Require Less Frequent Reinforcement

• Definition: Any change producing less reinforcement (e.g., continuous $\to$ intermittent, $\text{FR2}$ $\to$ $\text{FR11}$).
• Goals:
  • Free managerial time for reinforcing other behaviors.
  • Reduce satiation; keep reinforcer value high.
• Ethical caution: Not a tool for exploitation—must be transparent and jointly supported.
• Distinct from downgrading reinforcer quality (e.g., steak $\to$ hamburgers).

Guidelines for Safe Thinning

1. Gradual change; abrupt shifts resurrect old, unwanted behaviors.
2. Graph and monitor performance continually.
3. Watch for signs of ratio strain or break point (performance drop, complaints, emotional outbursts).

Illustration (Figure 17.1 Narrative)

• Baseline efficiency on slitting machine: $81.3\%$.
• Phase 1 (every improvement reinforced): $99.5\%$.
• Phase 2 (reinforce 3× week): $103.4\%$.
• Phase 3 (reinforce 1–2× week): $110.1\%$.
• Demonstrates performance increase despite fewer reinforcers when thinning is systematic.

Ratio Strain

• Occurs when required effort exceeds reinforcement value.
• Indicators:
  • Extended post-reinforcement pauses.
  • Erratic output.
  • Verbal complaints: “burned out,” “not worth it.”
  • Emotional or aggressive behavior, especially among high performers.
• Remedy: Increase reinforcement frequency/value or reduce ratio.

Tangible Reinforcers & Program End-Dates

• Merchandise or point programs resist thinning; announce finite duration at launch.
• Specify review date (e.g., “Program ends June 30; we’ll evaluate continuation then”).

Keeping Reinforcement Contingent

• Variable schedules: Reinforcement should still require criterion performance; it is the timing that is unpredictable, not the contingency itself.
• Misinterpretation of “surprise” leads to handing out rewards without performance basis → erosion of morale/performance.
• FI vs FT danger:
  • If an FI review/bonus occurs without any response, schedule slips into FT (non-contingent) → entitlement.
• Common FT pitfalls: Employee-of-the-Month rotations, automatic raises, holiday gifts.

Practical / Ethical Implications

• Over-reliance on FT/VT benefits breeds entitlement; weakens link between effort and outcome.
• Excessive thinning or ratio escalation perceived as exploitation; undermines trust in Performance Management (PM).
• “Best mistake” = reinforce too much; worst = reinforce too little.

Best-Practice Summary for Managers

• Diagnose existing (often invisible) schedules with PIC/NIC or functional analysis.
• Align schedule type with task demand (FI for deadline precision, VI for vigilance, FR/VR for output).
• Where system change is impossible, overlay supplementary contingent schedules.
• Use research-backed incentives; ratio-based pay generally outperforms hourly/salary for production quantity.
• Thin reinforcement gradually, monitoring data for ratio strain.
• Guard against FT/VT compensation cultures that decouple performance from reward.
• Always maintain clear, behavioral contingencies; plan when and why each reinforcer will be delivered.
• Continual reflection on your own reinforcement delivery schedule reveals your role in shaping culture of productive behavior.