SDT: how to write the Self-Description Test (without sounding fake)
The Self-Description Test (SDT) closes the SSB psychology day. You get roughly 15 minutes to write, in your own words, how the people closest to you see you — your parents, your teachers or employer, your friends — and then how you see yourself and the person you want to become. There are no pictures and no time-per-item pressure like the WAT or SRT; just a blank sheet and the hardest instruction of all: describe yourself honestly. The psychologist reads it last because it's the clearest window into your self-awareness, and the easiest place to catch someone who has been performing all day.
The five parts to cover
Plan for five short paragraphs: what your parents think of you, what your teachers (or your employer/seniors, if you're working) think of you, what your friends think of you, what you think of yourself, and the kind of person you are trying to become. Keep each to four or five honest sentences. You don't need a grand essay — you need a clear, consistent picture across all five.
Write what they'd actually say, not a character certificate
The most common mistake is turning every paragraph into a list of glowing adjectives — 'My parents think I am disciplined, honest, hardworking, responsible and obedient.' It reads as a certificate, not a person. Instead, write the way those people genuinely talk about you, with a little evidence: 'My father feels I've become more responsible since I started managing my own studies and helping run errands at home, though he still wishes I'd plan my time better.' That single line shows a real relationship, a real strength, and a real area to grow — far more than five adjectives ever could.
Include genuine weaknesses — and what you're doing about them
A description with no flaws is an instant red flag; nobody's parents and friends see them as perfect. The skill is to state real weaknesses without either hiding them or wallowing in them. Name the weakness plainly, then show awareness and effort: 'My friends say I can be short-tempered when I'm under pressure. I've started catching it earlier and stepping back before I react, and it's improved over the last year.' That demonstrates self-awareness, responsibility and determination — Officer-Like Qualities — far better than claiming you have no faults.
Make the five paragraphs tell ONE story
This is the part most candidates miss. The psychologist isn't reading the SDT in isolation — they're checking it against your TAT, WAT and SRT from the same day. If your stories and word associations show a quiet, cautious person but your SDT claims everyone sees you as a bold natural leader, the contradiction is exactly what gets flagged. Your different paragraphs should also agree with each other: the person your parents describe, your teachers describe and you describe should clearly be the same human being, seen from different angles. Consistency reads as authenticity; contradiction reads as acting.
The fifth paragraph: who you want to become
End with the person you're working to be — and make it realistic and specific, not a wish-list of every officer quality. Pick two or three things that genuinely follow from the weaknesses you've admitted ('I want to become someone who stays calm and decisive under pressure, and who finishes what he starts') and, ideally, hint at how. This paragraph should feel like the natural next step of everything above it, not a sudden leap into a perfect future self.
A few practical do's and don'ts
Write in simple, first-person English — the assessor wants your honest voice, not polished vocabulary. Don't memorise a template answer; psychologists have read thousands and spot a canned SDT instantly. Don't moralise or write what you think they want to hear. Watch your time: with no per-item clock, it's easy to over-write the first paragraph and rush the last, so give the 'who I want to become' part its fair share. And keep it legible — handwriting and presentation are noticed.
How to practise
The SDT rewards genuine self-knowledge, which you build by writing it more than once and reading it back honestly: does this sound like me, would the people named actually say this, and does it match my other tests? PrepForce includes the SDT alongside the full psychology battery and maps your responses to the 15 OLQs, so you can see whether your self-description reads as self-aware and consistent — and fix the contradictions — well before the morning it counts.