Question: Which hierarcchiologist believed It states that the selection of a candidate for a position is based on the candidate's performance in their current role, rather than on abilities relevant to the intended role?

<P0-S0> The Peter principle is a concept in management theory formulated by educator Laurence J. Peter and published in 1969. <P0-S1>  It states that the selection of a candidate for a position is based on the candidate's performance in their current role, rather than on abilities relevant to the intended role. <P0-S2>  Thus, employees only stop being promoted once they can no longer perform effectively, and "managers rise to the level of their incompetence". <SEP> <P1-S0> Laurence Johnston Peter (September 16, 1919 – January 12, 1990) was a Canadian educator and "hierarchiologist" best known to the general public for the formulation of the Peter principle. <SEP> <P2-S0> The 1924 Democratic presidential primaries were part of the selection process by which voters of the Democratic Party chose its nominee for President of the United States in the 1924 U.S. presidential election. <P2-S1>  The concept of a primary election, where any registered party member would vote for a candidate, was relatively new in the American political landscape. <P2-S2>  In only 12 states were actual primaries held, and even in those the results were not universally binding for the delegates to the Democratic National Convention, where the presidential candidate would be formally chosen. <P2-S3>  In most of the country, the selection of delegates was confined to state-level conventions and caucuses, under the heavy hand of local political machines. Though William Gibbs McAdoo won a vast majority of states, and much more than half of the popular vote, in those twelve states that held primary elections, it meant little to his performance nationwide. <P2-S4>  Many of the delegations from states that did "not" hold primary elections favored his main rivals, Oscar Underwood of Alabama and Al Smith of New York, neither of which won any primary elections. <P2-S5>  As well, the primaries that McAdoo did not win were won by "local sons" who stood no chance of winning the nomination, or in some cases were not even formal candidates. <P2-S6>  Once at the convention, the party was deadlocked for 102 straight ballots, before dark horse candidate John W. Davis, (who was not a formal candidate when he arrived at the convention) was chosen on the 103rd ballot. <P2-S7>  Davis went on to lose the election to Republican candidate Calvin Coolidge. <SEP> <P3-S0> Preselection is the process by which a candidate is selected, usually by a political party, to contest an election for political office. <P3-S1>  It is also referred to as candidate selection. <P3-S2>  It is a fundamental function of political parties. <P3-S3>  The preselection process may involve the party's executive or leader selecting a candidate or by some contested process. <P3-S4>  In countries that adopt Westminster-style responsible government, preselection is also the first step on the path to a position in the executive. <P3-S5>  The selected candidate is commonly referred to as the party's endorsed candidate.