Audit every dayCheck dates, duplicates, missing days, gaps, compliance, and usable occasions.
Separate the effectsDistinguish within-person change from stable between-person differences.
Respect timeBuild calendar-aware lags and evaluate trends, weekdays, and dependence.

WHAT IS INSIDE

A complete daily-diary workflow.

The package connects diary-structure audits, centering decisions, multilevel estimation, temporal diagnostics, power planning, and dynamic reporting in one reproducible report.

01

Audit the diary structure

Review person-by-day completeness, date order, duplicates, gaps, compliance, and observations per participant.

02

Quantify within-person variation

Identify measures that vary enough within people to support an intensive longitudinal question.

03

Center time-varying predictors

Separate day-level deviations from person-level averages and interpret each effect on its proper level.

04

Fit multilevel models

Estimate unconditional, concurrent, next-day lagged, random-intercept, and random-slope models.

05

Respect temporal structure

Use calendar-aware lags and review time trends, day-of-week patterns, unequal spacing, and autocorrelation.

06

Plan and report

Create accessible effect plots, reusable tables, dynamic results text, and a simulation-based power demonstration.

DESIGNED FOR DOCTORAL RESEARCH

Use it when days are nested within people.

This workflow is useful when:

  • Participants provide daily or near-daily reports across multiple occasions.
  • Your question concerns both within-person change and between-person differences.
  • You need to model concurrent or next-day associations.
  • Compliance, uneven gaps, centering, or random slopes affect the analysis.
  • Your committee expects clear diagnostics, effect plots, and reproducible reporting.

Experience-sampling bursts, more than two levels, categorical outcomes, dynamic structural equation models, and intensive series with complex serial dependence may require extensions beyond this workflow.

PUBLIC PREVIEW

Review the complete analysis output.

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Daily Diary & Intensive Longitudinal Models · Public Preview

The public preview shows the analysis output, figures, decision guidance, and dynamic reporting without exposing the underlying code. The paid package includes the complete editable R Markdown source, reusable diary module, all analysis code, synthetic data, documentation, and exported results.

THE DOWNLOADABLE PACKAGE

Run the example.
Then adapt your study.

The synthetic 14-day dataset contains unequal compliance, missing days, and documented within-person and between-person relations. The complete analysis runs before you introduce your own data.

  • Editable R Markdown source and rendered report
  • Reusable daily-diary analysis module
  • Documented synthetic diary data and schedule
  • Package installer and RStudio project
  • Compliance and variability audits
  • Concurrent and calendar-aware lagged models
  • Random slopes and temporal-dependence checks
  • Accessible figures, tables, and dynamic results text
  • Start guide, reporting checklist, and individual license

The workflow supports analysis and documentation. Design, centering, lag, covariance, and causal-interpretation decisions remain the researcher's responsibility and should be reviewed with the dissertation advisor, committee, or a qualified statistician.

VERSION 1.0

Complete workflow.
$59 one time.

Pay securely and receive the version 1.0 ZIP with the editable analysis, reusable diary module, synthetic data, documentation, rendered report, and reusable exports.

Purchase for $59 Review purchase terms