Table 3.

The MPT model parameters.

Parameter	Symbol	Description	Scope
Attempt	a	Probability of initiating an attempt	P&I
Sem	b	Probability of identifying the correct semantic neighborhood of the picture	P
LexSem	c	Probability of retrieving correct lexical-semantic information	P&I
LexPhon	d	Probability of retrieving correct lexical-phonological information	P&I
LexSel	e	Probability of selecting a target lexeme over competitors	P&I
Phon	f	Probability of retrieving correct phonemes	P&I
Word-T	g	Probability of a phoneme change in the target word creating a real word	I
Word-L	h	Probability of a phoneme change in a random word creating a real word	G

Scope abbreviations: G = globally independent of trial; P = participant dependent; I = item dependent; P&I = participant and item dependent.