Exam 4 (Psych (Exam)) Flashcards
Deductive Reasoning
Type of reasoning that begins with some specific premises that are assumed to be true. Next one judges whether those premises allow a particular conclusion to be drawn, based on principles of logic.
Conditional reasoning task (Propositional reasoning task)
Deductive reasoning task that describes the relationship between conditions. Conditional reasoning tasks are often presented in an “if .. then” format.
Syllogism
Common deductive reasoning task that consists of two statements that one must assume to be true, plus a conclusion. Syllogisms refer to quantities, so they use the words all, none, some, and other similar terms.
Propositional Calculus
In deductive reasoning, a system for categorizing four kinds of reasoning in analyzing statements that are made up of antecedents and consequents. When working on a conditional reasoning task, a person can perform two possible actions (1) affirm part of sentences saying its true, (2) deny part of the sentence saying its false.
Propositions
In deductive reasoning, propositions are statements that are made up of antecedents and consequents.
Antecedent
In conditional reasoning tasks, first proposition or statement, the antecedent is contained in the “if” part of the sentence.
Consequent
In conditional reasoning tasks, the proposition that comes second, is the consequence. The consequent in the “then” part of the sentence.
Affirming the antecedent
In conditional reasoning tasks, claiming that the “if” part of the sentence is true. Leads to a valid or correct conclusion.
Affirming the consequent
In conditional reasoning tasks, the fallacy (or error) of claiming that the “then” part of the sentence is true. Leads to an invalid conclusion.
Denying the antecedent
In conditional reasoning tasks, the fallacy (or error) of claiming that the “if” part of the sentence is false. Leads to an invalid conclusion.
Denying the consequent
In conditional reasoning tasks, claiming that the “then” part of the sentence is false. Leads to a valid or correct conclusion.
Dual-process theory
In reasoning and decision-making, the approach that distinguishes between two types of cognitive processing.
Type 1 processing
According to dual-process theory in reasoning and decision making. Fast, automatic, and require little conscious attention.
Type 2 processing
Relatively slow and controlled requiring focused attention and typically more accurate. Requires focused attention and performance is more accurate if person used Type 1 processing on that same task. Requires a more effortful analytic approach (focused attention and working memory so people can realize their initial conclusion wouldn’t be correct).
Belief-bias effect
When people make reasoning judgements based on prior beliefs and general knowledge, rather than on the rules of logic. In general, people make errors when the logic of a reasoning problem conflicts with their background knowledge. Example of Top-Down Processing (Theme 5). People with low scores on intelligence tests are likely to demonstrate belief-bias effect.
Confirmation bias
Tendency to try to confirm or support a hypothesis rather than try to disprove it.
Decision making
Assessing information and choosing among two or more alternatives. Compared to deductive reasoning, decision making is more ambiguous.
Heuristic
General rule or problem-solving strategy that produces a correct solution but can lead to cognitive errors.
Representative
In decision-making when a sample looks similar in important characteristics to the population from which it was selected.
Representativeness heuristic
General rule in decision-making that people use when trying to decide which outcome would be more likely. People who use this heuristic make judgements in terms of similarity between sample and population from which sample was selected. People believe that a coin toss of HTTHTH is more likely than coin toss of HHHTTT.
Small-sample fallacy
In decision-making, the assumption that a small sample will be representative of the population from which it is selected. This assumption leads to incorrect decisions.
Base rate
In decision-making, how often an item occurs in the population. People ignore this useful information.
Base-rate fallacy
In decision-making, paying too little attention to important information about how often an item occurs in the population (its base rate).
Conjunction rule
A rule stating that the probability of the conjunction of two events cannot be larger than the probability of either of its constituent events.