Graphical Model Description

LinkModel: ecd://Mixnum/Mixed__Number__Subtraction/Evidence__Model__6/
For Task: ecd://Mixnum/Mixed__Number__Subtraction/Simplify-Reduce__and__Borrow__from__Whole__Number/

Variables

Name	Role	External Name	Ordered	Values
Skill 1	SM			Yes, No,
Skill 2	SM			Yes, No,
Skill 3	SM			Yes, No,
Skill 4	SM			Yes, No,
Skills1n2n3n4	EM			Yes, No,
isCorrect	Observable	isCorrect		Correct, Incorrect,

Distributions

( Skill 1, Skill 2, Skill 3, Skill 4, ) -> Skills1n2n3n4

Type: Fixed Distribution

Probabilities

Skill 1	Skill 2	Skill 3	Skill 4	Yes	No
Yes	Yes	Yes	Yes	1.000000	0.000000
Yes	Yes	Yes	No	0.000000	1.000000
Yes	Yes	No	Yes	0.000000	1.000000
Yes	Yes	No	No	0.000000	1.000000
Yes	No	Yes	Yes	0.000000	1.000000
Yes	No	Yes	No	0.000000	1.000000
Yes	No	No	Yes	0.000000	1.000000
Yes	No	No	No	0.000000	1.000000
No	Yes	Yes	Yes	0.000000	1.000000
No	Yes	Yes	No	0.000000	1.000000
No	Yes	No	Yes	0.000000	1.000000
No	Yes	No	No	0.000000	1.000000
No	No	Yes	Yes	0.000000	1.000000
No	No	Yes	No	0.000000	1.000000
No	No	No	Yes	0.000000	1.000000
No	No	No	No	0.000000	1.000000

( Skills1n2n3n4, ) -> isCorrect

Type: HyperDirichlet Distribution

Parameters

Skills1n2n3n4	Correct	Incorrect	Sum	Scale
Yes	20	5	25.000000	25.000000
No	5	20	25.000000	25.000000