Credibility is arguably the most important factor in gaining
an audience’s adherence to an argument, because decision makers often make up
their minds about an argument before it even begins. Even when this is not the
case, it can be difficult to sway a decision maker who has already granted
credibility to the opposing side in an argument. Homophily especially is a
difficult barrier to breach, as most people are reluctant to grant adherence to
an argument from someone they see as different from themselves, even if they
believe that argument to be more compelling. This is an issue commonly seen in
politics, as people who are staunch supporters of a certain political party or
candidate will be more willing to accept arguments from people that share their
political views. This is why the consensus of who was the “winner” of a
political debate is often unclear, as decision makers will say that either
candidate was the winner depending on which one shares their partisan views.
Staying on the topic of politics, secondary credibility is a commonly used
strategy in political advertisements and debates, because decision makers are
likely to hold the opinion of current and previous figureheads from their party
in high regard. An example of this is Floridian Gubernatorial candidate Andrew
Gillum’s ad campaign that has former President Barack Obama advocating in favor
of Gillum for governor. This ad campaign relies on the secondary credibility of
President Obama, as it believes that decision makers will be more likely to agree
with Gillum’s case for governor due to the credibility that Obama has as a
former president.
Chapter five focuses primarily on identifying and developing propositions for problems that people think are relevant. It goes over 6 steps for choosing a valid proposition based on a perceived “feeling of doubt.” While all six steps may not be necessary, the collectively ensure a well thought out and firm proposition. The six steps include identifying the question, surveying implicated objectives (or understanding what is the goal accomplishment in regard to the question), searching for new information, considering alternative options, considering costs and risks of each potential proposition, and then finally choosing one of the propositions. The authors then go on to talk about analyzing and strengthening the proposition chosen. This includes identification and ranking of the issues that the proposition addresses as well as understanding how the decision makers will react to these issues and propositions. In general, with all these methods of critically analyzing the proposition, ...
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