IBM® SPSS® Amos™ 28

If this option is checked, fit measures are displayed for any null models that were fitted during the previous specification search.

To choose which null, or baseline, models are fitted during specification searches, click the Next search tab in the Options window. Then, under the Benchmark models heading, put check marks next to any of Null 1, Null 2, Null 3, and Null 4.

See Appendix F for an explanation of the four null models.