Constructs a single-attribute igraph object directly from a list of task names,
bypassing the need for a Q-matrix file. All tasks are assumed to require the single ability.
Usage
build_irt_graph(
task_names,
ability_name = "Theta",
default_task_compute = "dina"
)
Arguments
- task_names
Character vector. Names of the tasks (columns from the dataset).
- ability_name
Character. Name of the single latent trait. Default is "Theta".
- default_task_compute
Character. Default compute rule for tasks. Default is "dina".
Value
A topologically sorted igraph object representing the IRT structure.