Numerical magnitude comparison is a task in which a person decides which of two represented numbers is larger or smaller. The inputs might be written numerals, spoken number names or sets of objects. Choosing 8 rather than 3 as the larger number tests a numerical relationship; simply naming the symbol 8 instead tests numeral identification.
A task records both the decision and, when appropriate, reaction time. These outcomes depend on the representation and instructions, so successful comparison of two familiar digits need not establish equal skill with unfamiliar notation. Geetha B. Ramani and Robert S. Siegler assessed comparison of pairs of numerals separately from naming and counting in their number board game experiment.[ref]

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