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Table 2 QI (mention index), AI (availability index), and AI correction index

From: Island blues: indigenous knowledge of indigo-yielding plant species used by Hainan Miao and Li dyers on Hainan Island, China

Index

Answer

Value

QI

Not mentioned

0

Mentioned

1

AI

Never seen

0

Occasionally seen

1

Often seen

2

Very common

3

Correction index

Somewhere

− 1

Some places

− 0.5

Everywhere

0