Proof It
Proof It presents a short document on a word-processor-style page and asks you to click every error — misspellings, punctuation slips, capitalisation, wrong words and even double spaces. A gauge shows how many errors remain, and three incorrect clicks end the document. It is in every Cognify battery, including the three-game US default. Revelian’s 2016 brief gives five documents in five minutes, and candidates confirm the three-strike rule first-hand (“kicked out for clicking twice on a double space”).
Create an account to save your results. A Cognify pass includes unlimited replays. All results stay free.
Updated
How to play
Read the document and click any word — or space — that contains an error.
The gauge shows how many errors are left; every correct mark earns a star.
Three incorrect clicks end the document early — be sure before you click.
Five documents, one minute each; the document also ends when every error is found.
In the real assessment
The five-document / one-minute-each format and the three-strike rule are confirmed by Revelian’s 2016 brief and first-hand candidate accounts, and the three incorrect-click slots are visible in Revelian’s own 2016 promo. The number of errors per document is not published — this build seeds 10–20, increasing document by document and shifting toward the subtler error classes (punctuation, double spaces, wrong words) that candidates report missing. All documents here are original text written for practice.
Skills assessed
Create an account to save your results. A Cognify pass includes unlimited replays. All results stay free.
Score improvement across practice attempts
Across our matched practice data, the median candidate improves their score by +23% between their first and fifth practice attempt on a game — with no employer ever seeing practice data.
Read the full methodologyMedian Criteria Cognify score lift by practice attempt
Median paired change vs. first attempt on scored Criteria Cognify practice games. Observed practice association — not a hiring-outcome guarantee.
Companies reported to use Proof It
Candidates report seeing Proof It in assessments for these employers. Assessment stages can change by role, region, and recruiting cycle, so check your invitation before practicing.
Independent Cognify-style practice. GameAssessmentPrep is not affiliated with or endorsed by Criteria Corp. Employers configure the battery (the US default runs three games; the full suite runs six); timing and scoring vary — your invitation is authoritative.