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Latent Profile Analysis Done-Right Package
Submission-ready class enumeration, covariance sensitivity checks, and classification-error-aware distal outcome modeling—without treating uncertain class assignments as known facts.
Download the Free 7 Common LPA Mistakes Kit + Reproducible tidyLPA Code (.ZIP)Request a Scoped LPA Pilot Audit
Who this is for
Education evaluation PIs, health services cohort teams, organizational psychology labs, early-career faculty addressing Reviewer 2 concerns, and applied research contractors seeking methodologically defensible analyses.
Sample audit evidence
Synthetic data. 380 complete cases from 600 simulated cases.
| Covariance | K | LogLik | AIC | BIC | SABIC | ICL | BLRT p | Entropy | Min AvePP | Min class % | Min class n | starts | Converged starts | Best repeats | flags |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| EEI | 1 | -3671.9414001881 | 7367.8828003761 | 7415.1648554088 | 7377.0912017152 | 7415.1648554088 | Not computed | Not computed | 1 | 100 | 380 | 1 | 1 | 1 | Clear |
| EEI | 2 | -3345.7967597969 | 6729.5935195939 | 6804.4567733956 | 6744.1734883808 | 6844.9572038483 | Not computed | 0.84336536128 | 0.93664481555 | 40 | 152 | 9 | 9 | 9 | Clear |
| EEI | 3 | -3261.6618444566 | 6575.3236889131 | 6677.7681414839 | 6595.2752251479 | 6768.6587425232 | Not computed | 0.78604750633 | 0.87281755327 | 20.5263157895 | 78 | 9 | 9 | 9 | Clear |
| EEI | 4 | -3218.1942882966 | 6502.3885765931 | 6632.4142279329 | 6527.7116802757 | 6730.2800933335 | Not computed | 0.80585193631 | 0.81385626042 | 12.1052631579 | 46 | 9 | 9 | 3 | Clear |
| EEI | 5 | -3170.3225449758 | 6420.6450899515 | 6578.2519400604 | 6451.3397610819 | 6703.6765367096 | Not computed | 0.79272222469 | 0.83128616323 | 12.1052631579 | 46 | 9 | 9 | 9 | Clear |
| EEI | 6 | -3151.150498259 | 6396.300996518 | 6581.4890453958 | 6432.3672350961 | 6717.0052141841 | Not computed | 0.79286316318 | 0.82770953784 | 7.1052631579 | 27 | 9 | 9 | 1 | Best likelihood not replicated |
| VVI | 1 | -3671.9414001881 | 7367.8828003761 | 7415.1648554088 | 7377.0912017152 | 7415.1648554088 | Not computed | Not computed | 1 | 100 | 380 | 1 | 1 | 1 | Clear |
| VVI | 2 | -3330.9685858947 | 6711.9371717894 | 6810.4414531074 | 6731.1213412458 | 6850.8157952359 | Not computed | 0.84975606304 | 0.93933922402 | 39.2105263158 | 149 | 9 | 9 | 9 | Clear |
| VVI | 3 | -3245.0267007506 | 6566.0534015013 | 6715.7799091047 | 6595.2133390751 | 6793.8318202846 | Not computed | 0.81205548109 | 0.89713166672 | 18.6842105263 | 71 | 9 | 9 | 8 | Clear |
| VVI | 4 | -3192.3066036243 | 6486.6132072485 | 6687.5619411373 | 6525.7489129397 | 6774.9165047132 | Not computed | 0.81719562481 | 0.86533643929 | 11.3157894737 | 43 | 9 | 9 | 5 | Clear |
| VVI | 5 | -3154.4826687829 | 6436.9653375658 | 6689.1362977399 | 6486.0768113743 | 6796.7538062062 | Not computed | 0.80880583222 | 0.84634823355 | 11.0526315789 | 42 | 9 | 9 | 3 | Clear |
| VVI | 6 | -3129.0243069576 | 6412.0486139151 | 6715.4418003746 | 6471.135855841 | 6826.5474763666 | Not computed | 0.82344021898 | 0.85419838964 | 5.7894736842 | 22 | 9 | 9 | 1 | Best likelihood not replicated; Small modal class |
| EEE | 1 | -3128.9856402749 | 6311.9712805498 | 6418.3559043732 | 6332.6901835627 | 6418.3559043732 | Not computed | Not computed | 1 | 100 | 380 | 1 | 1 | 1 | Clear |
| EEE | 2 | -3112.2597795494 | 6292.5195590988 | 6426.4853816913 | 6318.6100295596 | 6504.4235887673 | Not computed | 0.70134017873 | 0.85389341063 | 27.3684210526 | 104 | 9 | 9 | 6 | Clear |
| EEE | 3 | -3092.1891265516 | 6266.3782531032 | 6427.9252744647 | 6297.8402910118 | 6560.4384781843 | Not computed | 0.66951151896 | 0.83040589665 | 28.1578947368 | 107 | 9 | 9 | 5 | Clear |
| EEE | 4 | -3076.420910891 | 6248.841821782 | 6437.9700419126 | 6285.6754271385 | 6560.6638808734 | Not computed | 0.75168272041 | 0.84735855793 | 11.0526315789 | 42 | 9 | 9 | 2 | Clear |
| EEE | 5 | -3068.8115375708 | 6247.6230751415 | 6464.3324940412 | 6289.8282479458 | 6605.4625309117 | Not computed | 0.75475829683 | 0.74327904024 | 8.4210526316 | 32 | 9 | 9 | 1 | Best likelihood not replicated |
| EEE | 6 | -3061.6904981259 | 6247.3809962518 | 6491.6716139204 | 6294.9577365038 | 6670.3061411841 | Not computed | 0.72569445157 | 0.7228740252 | 9.4736842105 | 36 | 9 | 9 | 1 | Best likelihood not replicated |
| VVV | 1 | -3128.9856402749 | 6311.9712805498 | 6418.3559043732 | 6332.6901835627 | 6418.3559043732 | Not computed | Not computed | 1 | 100 | 380 | 1 | 1 | 1 | Clear |
| VVV | 2 | -3075.8786080451 | 6261.7572160902 | 6478.4666349898 | 6303.9623888944 | 6554.0040769165 | Not computed | 0.70915176812 | 0.90356905043 | 42.1052631579 | 160 | 9 | 9 | 4 | Clear |
| VVV | 3 | -3043.0770243884 | 6252.1540487768 | 6579.1882627526 | 6315.8454913723 | 6690.3971694429 | Not computed | 0.72411254992 | 0.76190091094 | 22.6315789474 | 86 | 9 | 9 | 2 | Clear |
| VVV | 4 | -3014.6093935783 | 6251.2187871566 | 6688.5777962086 | 6336.3964995433 | 6747.770119415 | Not computed | 0.88086935488 | 0.88041638589 | 4.2105263158 | 16 | 9 | 9 | 1 | Best likelihood not replicated; Small modal class |
| VVV | 5 | -2963.2025748559 | 6204.4051497118 | 6752.0889538399 | 6311.0691318898 | 6837.5013023752 | Not computed | 0.85336117088 | 0.81979071088 | 6.8421052632 | 26 | 9 | 9 | 1 | Best likelihood not replicated |
| VVV | 6 | -2942.0744084375 | 6218.148816875 | 6876.1574160793 | 6346.2990688441 | 6947.246740102 | Not computed | 0.89095471982 | 0.79497897342 | 4.7368421053 | 18 | 9 | 9 | 1 | Best likelihood not replicated; Small modal class |
Lower BIC is preferred within the same analysis sample. Entropy and AvePP describe classification precision. BLRT was omitted. Flags mark candidates requiring review.
| Covariance | K | BIC |
|---|---|---|
| EEI | 5 | 6578.2519400604 |
| VVV | 1 | 6418.3559043732 |
| contrast | Target | Modal OLS | OLS SE | OLS error | BCH estimate | Conditional BCH SE | BCH error |
|---|---|---|---|---|---|---|---|
| 2 vs 1 | 0.65 | 0.46644843556 | 0.13262823771 | -0.18355156444 | 0.5725108129 | 0.18864748999 | -0.077489187103 |
| 3 vs 1 | 1.35 | 0.93865078055 | 0.1214126777 | -0.41134921945 | 1.0512551835 | 0.13320325234 | -0.29874481646 |
BCH standard errors condition on the fixed indicator model. Error compares the estimate with the generating contrast in this simulation.
What you receive
| Deliverable | Free kit | Scoped audit |
|---|---|---|
| Enumeration and covariance sensitivity | Synthetic fit table, plots and start logs | Fit and stability evidence for your study |
| Distal outcome analysis | Worked modal versus BCH comparison | One outcome or predictor analysis if supported and agreed in scope |
| Reporting and reproduction | HTML and Word audit and checklist, synthetic data, R and Quarto sources | Study-specific code, report and reviewer-response memo |
Scope and interpretation
Profiles summarize patterns in measured indicators. Claims about latent types or causal mechanisms require independent evidence. Class count depends on the sample, indicators and assumptions. The pilot scopes one dataset with 4–10 continuous indicators.
Principal methodologist
Nedim Yel, Ph.D., is founder and principal statistician at Data Analysis & Statistical Solutions (DASS) and creator of Reviewer Ready and StatPower. He holds a Ph.D. in Measurement, Statistics, and Methodological Studies and has 15+ years of experience in quantitative methodology, psychometrics, and IES- and NSF-funded research.
Free reproducible lead magnet kit
7 Common Latent Profile Analysis Mistakes & Reproducible R/Quarto Audit Pipeline. Enter your email to request the kit and download it here. DASS uses your email to handle the request. Methodology notes are optional. See our privacy policy.
Request a Scoped LPA Pilot Audit
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Related research resources
- Get Reviewer Ready for pre-submission statistical review and help addressing reviewer feedback.
- Dissertation Stats Helper’s LPA workflow for an editable R Markdown workflow you can run and adapt yourself.