TTR or MATTR in KIDEVAL?

[Amy Wilder]

Hello,

Can you tell me if the FREQ_TTR value in the KIDEVAL output is calculated using a moving-average type-token ration (MATTR) or standard TTR?

Thanks for your help!

Amy

[Brian Macwhinney]

Dear Amy,

KIDEVAL computes the traditional TTR. If you want MATTR, you can use the +b2 option in FREQ independently.

— Brian MacWhinney

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[Leonid Spektor]

Hi Amy,

In KIDEVAL it is just standard TTR. This value is computed from lemmas and not main speaker tier. To compute MATTR you should run FREQ command by itself with +b option.

Leonid.

[Amy Wilder]

Great. Thank you!