I recently downloaded Mplus 7.4. Based on comments of reviewers I requested some additional output for analyses I conducted with version 7.3. However, I get slightly different results. Most of the time, estimates differ in the second or third decimal, but for one of the analyses it has changed the interpretation of the results. Comparing the outputs I have come to realise version 7.4 uses more integration points than 7.3. Specifying the integration points in the input file does make the estimates with 7.4 more similar to the output with version 7.3, but not completely, so I suppose there must be some other minor differences between both versions.
Are the results from 7.4 more accurate and should I report those? Or can I change the number of integration points to mimic as much as possible the output I got with 7.3?
In principle you should go with the solution that has the best loglikelihood. But if you have high number of dimensions of integration, the likelihood may be poorly determined. So to answer your question I need to know how many dimensions you have, how many integration points were used in your 7.3 run, and how many in your 7.4 run.