RRB Section Controller CBAT Minimum T-score of 42 in each test battery

🔍 What is a T-Score?

A T-score is a standardized score used in aptitude tests like CBAT (similar to what is used for RRB ALP and Psycho tests).
It converts your raw marks into a standard scale so that everyone’s scores are comparable, even if the test versions (batteries) are different.

On this scale:

• The mean (average) is set at 50
• The standard deviation is set at 10

So, a T-score tells you how far above or below average your performance is compared to all test takers.

🧪 What are Test Batteries?

In CBAT, you don’t just get one paper.
You face multiple test batteries — each battery measures a different type of aptitude needed for Section Controller (like memory, decision-making, concentration, reaction time, etc.).

For example:

• Test Battery 1: Memory & Concentration
• Test Battery 2: Decision-Making Ability
• Test Battery 3: Spatial/Visual Aptitude
• (Exact types are defined in the CBAT guidelines in the notification)

⚠️ The Rule: Minimum T-Score of 42

• You must score at least 42 T-score points in each test battery, not just the overall average.
• Even if you score very high in some batteries but fall below 42 in one, you will be disqualified.
• This rule applies to all categories — no relaxation for SC/ST/OBC/PwBD.

👉 Example:

• Battery 1: T-score = 45 ✅ (Qualified)
• Battery 2: T-score = 38 ❌ (Disqualified, since <42)
• Battery 3: T-score = 50 ✅

Result: Candidate fails CBAT because one battery is below 42.

📌 Why 42?

RRB sets 42 T-score as the cutoff because it roughly means a candidate is performing at least moderately above the lower end of performance. It ensures minimum aptitude for a safety-critical job like Section Controller, where alertness and decision-making are vital.

✅ In short:

• T-score = standardized performance score.
• Test battery = one aptitude test module.
• Minimum T-score of 42 in each battery = you must clear all aptitude modules individually.