EVAL-D – Language Sample Evaluation (DementiaBank)

Status: Current

Purpose

EVAL-D is a variant of EVAL used for data collected with the DementiaBank protocol. The analysis logic is identical – only the normative comparison database differs.

EVAL uses AphasiaBank norms; EVAL-D uses DementiaBank norms.

Usage

chatter clan eval-d file.cha
chatter clan eval-d --speaker PAR file.cha
chatter clan eval-d --format json file.cha

Options

All options are identical to EVAL.

Differences from CLAN

• Same as EVAL – see EVAL differences.
• The EvalVariant::Dialect config flag selects DementiaBank norms automatically.

Implementation

EVAL-D is not a separate command module. It reuses EvalCommand with EvalConfig { variant: EvalVariant::Dialect, .. }. The variant determines which .cut database directory to use for normative comparison.