Chapter 8 Flashcards
Attributes of a concept
The qualities a concept has in common with other instances of the concept. Like the pages, print, cover that a book has.
Values of those attributes
For a book it would be the type of qualities a concept has, like the size of the pages, colour of print, type of cover (hard or paperback), etc.
Conjunctive concept
One defined by a simple conjunction of two or more attributes, like a card with “black” and “square” on it. That is a conjunctive concept. A and B.
Disjunctive concept
A concept defined by two or more possible sets of attributes, like Canadian citizenship. There are three ways of acquiring it: being born here, being born abroad to a Canadian, or by becoming a naturalized citizen. Or a baseball strike can be defined as a pitch in the strike zone or when a batter swings and misses. This concept is more complex. A or B.
Relational concept
The relationship between attributes determines the class to which an event will be assigned. Concept of marriage is a relationship between two people. Or sister, a girl in relation to another person who has the same parents.
Criterial attribute
An attribute that is required in order for something to qualify as an instance of a concept.
Abstraction
Taking away non-recurring attributes and including recurring attributes. This is how you can determine which attributes form a concept, by eliminating the ones that don’t recur in the positive instances.
Positive vs. negative instance
Positive is when the instance is a particular concept; negative instance is when the instance isn’t; when it doesn’t contain the right attributes.
Selection task
A concept formation task in which the participant selects instances from those presented by the experimenter.
Conservative focusing
A concept formation strategy of actively formulating hypotheses and selecting instances to see if your hypotheses are correct by focusing on one attribute at a time and by selecting instances that vary only in that one attribute.
Focus gambling
The concept formation strategy of selecting instances that vary from the first positive instance in more than one attribute.
Simultaneous scanning
The concept formation strategy of keeping in mind all possible hypotheses and trying to eliminate as many as possible with each instance selection.
Successive scanning
The concept formation strategy of formulating a single hypothesis and testing it by selecting instances until the correct hypothesis emerges.
Reception task
A concept formation task in which the instances presented to the participant are chosen by the experimenter.
Wholist strategy
A concept formation strategy, used in reception tasks, in which you initially hypothesize that all attributes are members of the concept.