The half-tank habit isn’t nervousness — it’s a narrow rule you built to guard your calm
If you always top up before the needle drops below half, you know the small jolt of watching it fall. ... Read…
CAADRIA
Cognitive, Affective And Developmental Research Insights Archive
Your mind is more interesting than the myths about it.
CAADRIA — the Cognitive, Affective And Developmental Research Insights Archive — turns real psychology research into guides you can test on yourself: self-checks, experiments and myth-busting you can feel working.
Predict the finding
In a famous study, people watched a basketball video while a person in a gorilla suit walked through the middle of the game. What share of viewers never noticed the gorilla?
0%
Roughly half of viewers missed the gorilla entirely (Simons & Chabris, 1999). Attention isn't a camera — it's a spotlight, and everything outside it can simply vanish.
Why your brain does this →The archive
Six rooms of the mind
Anxiety & stress
What worry is for, when it misfires, and evidence-based ways to work with it.
Memory & attention
Why you forget names, miss gorillas, and how to actually remember things.
Personality
The Big Five, what's stable, what changes, and what tests can really tell you.
Relationships
Attachment, conflict, connection — what the research says actually helps.
Sleep & habits
The science of rest, routine and behaviour change that sticks.
Biases & decisions
The predictable glitches in human judgement — and how to catch your own.
Myth lab
Guess before you flip
Fresh from the archive
All articles → 
Precommitment isn’t self-deception — it’s a habit trick that keeps working after you see through it
Set every clock in your house ten minutes fast, and you will still catch yourself thinking, that is not the ... Read…
Helpful feedback isn’t a grade or a gold star — it’s specific information about the task you just did
Helpful feedback carries specific information about the task you just did, rather than a grade or a gold star. A ... Read…
How we work
Research first, hype never
Every claim on CAADRIA traces back to published research — and when studies disagree or fail to replicate, we say so. Interactive self-checks run entirely in your browser: your answers are never stored or sent anywhere.
- Claims cited to published studies
- Replication status flagged honestly
- Self-checks run in your browser only
- Educational content, clearly not therapy
Before you ask
Common questions
The short version: educational, evidence-based, and never a substitute for professional care. Details on the right.
What does CAADRIA stand for?
The Cognitive, Affective And Developmental Research Insights Archive — the three pillars of psychological science (thinking, feeling, growing) in one library.
Are the self-checks real psychological tests?
They are educational versions built on open, validated research instruments. They can show you patterns worth reflecting on, but they are not clinical assessments and cannot diagnose anything.
Do you store my quiz answers?
No. Interactive checks run entirely in your browser. Nothing you answer is stored on our servers or sent anywhere.
Is this a substitute for therapy?
No. CAADRIA is an educational publication. If you are struggling, a qualified mental-health professional is the right person to talk to.
CAADRIA is an independent psychology publication. Our content is educational and is not a substitute for professional mental-health advice, diagnosis or treatment. If you are struggling, please reach out to a qualified professional.