Deductive Reasoning
Propositional Calculus Terminology
Negative Wording and Representative Heuristic.
100

How often you use deductive reasoning ______.

every day

100

What is Proposition?

statement you are making the
decision about

100

The following statement is true or false?

People handle positive information worst than negative information

False

200

What is Deductive Reasoning?

begin with some
specific premises that are true and you must
judge whether those premises allow you to
draw a particular conclusion based on logic.

200

Concluding the statement is
true/valid is an example of what?

Affirm.

200


People also struggle with reasoning problems that
involve abstract vs. concrete examples. 

Give an example.

–If an object has polka dots, then it is spherical.

300

What is conditional Reasoning?

Relationship between 2 conditions
–If.....then
–Judged as valid or invalid

300

What deny means?

confirm the statement is false/invalid

300

When Representative Heuristic is used?


Used when we make decisions based on whether a sample looks similar to the population from which it was selected

400

What is Syllogism?

2 statements that we must assume to be true, plus a conclusion
–All, none, some
–Judged as valid, invalid, or indeterminate

400

What is the definition of Antecedent?

If statement, comes first
–The “if” part is true

400

Availability Heuristic

Estimate frequency or
probability in terms of how easy it is to think
of relevant examples

500

Mention one or more  Syllogism examples.

Some psychology majors are friendly people.
–Some friendly people are concerned about poverty.
–Therefore, some psychology majors are concerned
about poverty?

500

Consequent definition.

Consequence, comes second
–The “then” part is true

500

Availability heuristic can be distorted by what?

 recency and familiarity