Understanding Psychology (10th Ed)

preoperational stage

 
According to Piaget, 
the period from 2 to 7 years of age that is 
characterized by language development 
(Module 37).

priming

 
A phenomenon in which exposure to 
a word or concept (called a prime) later makes 
it easier to recall related information, even 
when there is no conscious memory of the word 
or concept (Module 21).

principle of conservation

 
The knowledge that 
quantity is unrelated to the arrangement and 
physical appearance of objects (Module 37).

proactive interference

 
Interference in which 
information learned earlier disrupts the recall of 
newer material (Module 22).

procedural memory

 
Memory for skills and 
habits, such as riding a bike or hitting a base-
ball; sometimes referred to as nondeclarative 
memory (Module 20).

progesterone

 
A female sex hormone secreted 
by the ovaries (Module 33).

projective personality test

 
A test in which a 
person is shown an ambiguous stimulus and 
asked to describe it or tell a story about it 
(Module 42).

prosocial behavior

 
Helping behavior 
(Module 55).

prototypes

 
Typical, highly representative 
examples of a concept (Module 23).

ovulation

 
The point at which an egg is released 
from the ovaries (Module 33).

panic disorder

 
Anxiety disorder that takes the 
form of panic attacks lasting from a few 
seconds to several hours (Module 47).