Three related structures | A bifactor population and two backbones | Step 1: ordinary oblique sweeps | Step 2: a comparison derived from Step 1 | The same window as a bifactor sweep | References

Decision inventory | One sweep | The candidate table | Adjacent transitions | Persistence, read directly | Column strength | What the three readings say here | Analysis-side dual-count and persistence profiles | Display methods | Scope | References

The design matrix Q | Simulate, design, fit | Fit statistics | Local dependence | Restricting the search: Qe | Diagonal vs. local dependence: does modeling residual correlation matter? | The ld_control knob | Missing data | A simulated illustration | Empirical: NLSY 1997 | From graded knowledge to a Q matrix | References

Simulating MIMIC data | Anchor at least one part | Fit and read | Missing responses | Options worth knowing | References

How to use this package in brief