Conditional Reasoning
Reasoning Types & Biases
Representativeness Heuristic
Availability & Anchoring
Applications
100

The 'if' part of a conditional statement that comes first

What is the antecedent?

100

Two types of cognitive processing: fast/automatic Type 1 and slow/controlled Type 2

What is dual-process theory?

100

We judge that a sample is likely if it is similar to the population from which it is sampled

What is the representativeness heuristic?

100

Estimating frequency or probability based on how easy it is to think of relevant examples

What is the availability heuristic?

100

When the outcome of a decision is influenced by background context and how the question is worded  

What is the framing effect?

200

When you say the 'if' part is true and reach a valid conclusion

What is affirming the antecedent?

200

When people make judgments based on prior beliefs rather than rules of logic

What is the belief-bias effect?

200

How often an item occurs in a population, which people often ignore when using representativeness

What is the base rate?

200

When people believe two variables are statistically related even though there is no real evidence

What is illusory correlation?

200

When confidence judgments are higher than they should be based on actual performance

What is overconfidence?

300

When you say the 'then' part is true, leading to an invalid conclusion

What is affirming the consequent?

300

The tendency to confirm or support a hypothesis rather than try to disprove it

What is confirmation bias?

300

When we falsely think a small sample will be as representative as a larger sample

What is the small-sample fallacy?

300

Beginning with a first approximation and then making adjustments based on additional information

What is the anchoring and adjustment heuristic?

300

The 'knew it all along' effect where we say an event was inevitable after it happens

What is hindsight bias?

400

When you say the 'then' part is false, leading to a valid conclusion

What is denying the consequent?

400

A form of deductive reasoning with two true statements plus a conclusion using 'all, none, some'

What is a syllogism?

400

When we judge the probability of two events co-occurring to be greater than one event alone

What is the conjunction fallacy?

400

The range within which we expect a number to fall a certain percentage of the time

What is a confidence interval?

400

When we underestimate the amount of time or money necessary to complete a project

What is the planning fallacy?

500

The 'then' part or consequence that comes second in a conditional statement

What is the consequent?

500

Deductive reasoning that describes the relationship between conditions using 'if...then' statements

What is conditional (or propositional) reasoning? 

500

The rule stating that the probability of two events occurring together cannot be larger than one event

What is the conjunction rule?

500

People create a variety of heuristics to make useful, adaptive decisions in the real world

What is ecological rationality?

500

The theory explaining why we think of gains differently than losses when making decisions

What is prospect theory?

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