Alden Bradford Calculator

Alden Bradford Calculator .ab-calculator-wrapper { max-width: 800px; margin: 0 auto; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; color: #333; line-height: 1.6; } .ab-calc-card { background: #f8f9fa; border: 1px solid #e9ecef; border-radius: 8px; padding: 30px; box-shadow: 0 4px 6px rgba(0,0,0,0.05); margin-bottom: 40px; } .ab-input-group { margin-bottom: 20px; } .ab-input-group label { display: block; font-weight: 600; margin-bottom: 8px; color: #2c3e50; } .ab-input-group input { width: 100%; padding: 12px; border: 1px solid #ced4da; border-radius: 4px; font-size: 16px; box-sizing: border-box; } .ab-input-group input:focus { border-color: #4a90e2; outline: none; box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1); } .ab-btn { background-color: #2c3e50; color: white; border: none; padding: 14px 24px; font-size: 16px; font-weight: bold; border-radius: 4px; cursor: pointer; width: 100%; transition: background-color 0.2s; } .ab-btn:hover { background-color: #1a252f; } .ab-result-box { margin-top: 25px; padding: 20px; border-radius: 4px; background-color: #fff; border-left: 5px solid #ccc; display: none; } .ab-score-display { font-size: 32px; font-weight: 800; color: #2c3e50; margin-bottom: 10px; } .ab-severity-label { font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; font-size: 14px; } .ab-content-section h2 { color: #2c3e50; border-bottom: 2px solid #eee; padding-bottom: 10px; margin-top: 40px; } .ab-content-section h3 { color: #34495e; margin-top: 25px; } .ab-content-section p { margin-bottom: 15px; } .ab-content-section ul { margin-bottom: 15px; padding-left: 20px; } .ab-content-section li { margin-bottom: 8px; } /* Severity Colors */ .severity-low { border-left-color: #2ecc71; } .severity-low .ab-severity-label { color: #2ecc71; } .severity-medium { border-left-color: #f1c40f; } .severity-medium .ab-severity-label { color: #d35400; } .severity-high { border-left-color: #e67e22; } .severity-high .ab-severity-label { color: #e67e22; } .severity-critical { border-left-color: #c0392b; } .severity-critical .ab-severity-label { color: #c0392b; }

Alden Bradford Calculator

Calculate the Bradford Factor for absenteeism impact

SEVERITY
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Understanding the Alden Bradford Calculator

The Alden Bradford Calculator is an essential tool utilized primarily in Human Resources and workforce management to calculate the Bradford Factor. This metric is designed to weigh the impact of employee absenteeism on an organization's efficiency.

Unlike simple calculations of total days lost, the Alden Bradford methodology places a significantly higher weighting on the frequency of absence (spells) rather than the total duration. The theory suggests that frequent, short, unplanned absences are more disruptive to business operations than fewer, longer planned absences.

The Formula

The calculator uses the standard formula:

B = S² × D

  • B = The resulting Bradford Score.
  • S = Spells (Total number of separate absence instances).
  • D = Days (Total number of days absent over the rolling period).

Calculation Examples

To understand the disparity in scores based on frequency, consider three employees who were all absent for exactly 10 days in a year:

  • Employee A: 1 absence of 10 days.
    Calculation: 1² × 10 = 10 Points (Minimal Impact).
  • Employee B: 5 absences of 2 days each.
    Calculation: 5² × 10 = 25 × 10 = 250 Points (Moderate Impact).
  • Employee C: 10 absences of 1 day each.
    Calculation: 10² × 10 = 100 × 10 = 1,000 Points (Critical Impact).

Interpreting the Score

While thresholds vary by organization, the Alden Bradford Calculator typically categorizes scores into the following trigger points:

  • 0 – 50: No concern. Standard healthy attendance.
  • 51 – 200: Verbal Warning or Initial Review. Pattern is emerging.
  • 201 – 400: Written Warning. The disruption is becoming significant.
  • 401 – 640: Final Warning. Serious disciplinary issues.
  • 640+: Grounds for Dismissal or severe intervention.

Use this calculator to objectively monitor trends and ensure fair, data-driven discussions regarding attendance and workforce reliability.

function calculateAldenBradford() { // Get input values var spellsInput = document.getElementById('ab_spells'); var daysInput = document.getElementById('ab_days'); var spells = parseFloat(spellsInput.value); var days = parseFloat(daysInput.value); // Validation if (isNaN(spells) || isNaN(days) || spells < 0 || days < 0) { alert("Please enter valid positive numbers for both spells and days."); return; } // Logic: Bradford Factor = Spells * Spells * Days var score = spells * spells * days; // Determine Severity and Styling var resultBox = document.getElementById('ab_result'); var scoreDisplay = document.getElementById('ab_score_value'); var severityText = document.getElementById('ab_severity_text'); var explanation = document.getElementById('ab_explanation'); // Reset classes resultBox.className = 'ab-result-box'; var severity = ""; var message = ""; var cssClass = ""; if (score <= 50) { severity = "Low Concern"; message = "Attendance is within acceptable parameters."; cssClass = "severity-low"; } else if (score <= 200) { severity = "Moderate Concern"; message = "Consider an informal review or verbal warning."; cssClass = "severity-medium"; } else if (score <= 400) { severity = "High Concern"; message = "Disruption is significant. Written warning range."; cssClass = "severity-high"; } else { severity = "Critical Impact"; message = "Severe disruption to operations. Immediate action required."; cssClass = "severity-critical"; } // Update DOM scoreDisplay.innerText = Math.round(score); // Scores are integers severityText.innerText = severity; explanation.innerText = message; // Add specific class for border color resultBox.classList.add(cssClass); // Show result resultBox.style.display = 'block'; }

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