Evidence and statisticsDMfirst-owned · Edition 111
Evaluate winning screenshots as a selected sample
A screenshot may show one event while hiding how it was selected. Learn to ask for the denominator, distinguish frequency from size, and assess what a collection of success stories cannot establish.
Start by writing down what the screenshot is supposed to prove. It might be offered as evidence that an interface exists, that one displayed result occurred, or that ordinary users reliably make money. These are very different claims. An image of a balance is much narrower evidence than a complete, independently checked account history. It may also come from a demonstration environment or have been edited.
A sample is influenced by the process that produced it. If people share only their best results, the visible collection is selected for success. If a promoter chooses which messages to publish, another selection step is added. The resulting feed may contain genuine individual images while giving a misleading impression of typical experience.
Ten successful examples out of ten attempts describe a different record from ten selected examples out of ten thousand attempts. Without the total number of attempts or participants, a success count cannot establish a success rate. You also need a consistent time window. A lifetime highlight collection should not be compared with one ordinary day's results as though both represent the same exposure.
A high fraction of favorable outcomes does not by itself imply a positive net result. Nine gains of one unit and one loss of twenty units produce a net loss of eleven units. This hypothetical example shows why the size of outcomes matters. Counting the green entries while ignoring their amounts answers a different question from calculating the total change.
People who stop after unfavorable results may disappear from a community, while those with positive stories remain active and visible. Looking only at current active posters can therefore exclude a relevant part of the experience. Similarly, a record that stops at a favorable moment may conceal later outcomes. These are questions about observation and selection, not proof that any particular person is dishonest.
For any strong claim, identify the original source, the selection method, the denominator, the time period and the meaning of each amount. Ask whether an independent source confirms the relevant facts. Keep the conclusion proportional to what was actually established. A screenshot might support that a screen was displayed; it does not necessarily establish a withdrawal, a typical return or an operator's financial condition.
Use a short evidence checklist
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