When asked whether the letter $"$d$"$ is most likely to occur in the first position or the third position in a word, most people say "first". Actually, $"$d$"$ is far more likely to appear in the third position, but people find it a lot harder to readily come up with words containing $"$d$"$ in the third position than words beginning with the letter $"$d$".$ This mental "shortcut", in which people use information more prominent in memory at the time of the test rather than information that is more difficult to summon, is: $\backslash$