United States dollar or ""bill"" (e.g. ""two bills"" being $200). The $50 note is occasionally called a ""yardstick"" or a ""grant"" (after President Ulysses S. Grant, pictured on the obverse). The $20 note is referred to as a ""double sawbuck"", ""Jackson"" (after Andrew Jackson), or "double eagle". The $10 note is referred to as a ""sawbuck"", ""ten-spot"" or ""Hamilton"" (after Alexander Hamilton). The $5 note as ""Lincoln"", ""fin"", ""fiver"" or ""five-spot"". The infrequently-used $2 note is sometimes called ""deuce"", ""Tom"", or ""Jefferson"" (after Thomas Jefferson). The $1 note as a ""single"" or ""buck"". The dollar has also been referred to as a ""bone""
Association value names have higher association values than numbers. Some formal theories of learning incorporate a quantified form of the concept of association value. For example, in the Rescorla–Wagner model of classical conditioning, the parameter β, which expresses the capacity of the unconditional stimulus to support learning, is sometimes referred to as its association value. This usage is consistent with the more general concept of association value as described by Glaze, but typically in such formal theories the parameters are not measured independently of the fitting of the model to learning data. Association value Association value is a concept in cognitive psychology