aggregate_responses

Aggregates all written responses within a testlet for each student.

Implements the Topic Testlet Model (TTM) as described by Xiong et al. (2025) <doi:10.1111/jedm.70001>.
The package integrates Latent Dirichlet Allocation (LDA) with the Partial Credit Model to
account for local item dependence in testlets using latent topics from student
textual responses.

Jiawei Xiong

TopicTestlet

A Topic Testlet Model for Calibrating Testlet Constructed
Responses

Cheng Tang

Qidi Liu

aggregate_responses function

<dl><dt>response_matrix</dt>
<dd>An N x J matrix of character strings (essays).</dd></dl>

Arguments

Concatenate Student Responses — aggregate_responses

<dl>

<dt>response_matrix</dt>
<dd>An N x J matrix of character strings (essays).</dd>

</dl>

aggregate_responses: Concatenate Student Responses

Description

Usage

Value

Arguments