Item

1

2

3

Option

1

2

1

2

3

1

2

Score

Subject

1

1

0

0

1

0

0

1

Y₁

2

0

1

1

0

0

1

0

Y₂

3

1

0

0

0

1

0

1

Y₃

4

1

0

1

0

0

1

0

Y₄

5

0

1

0

0

1

1

0

Y₅

6

0

1

0

1

0

0

1

Y₆

Weights

X₁

X₂

X₃

X₄

X₅

X₆

X₇