Vera Sem Longchange Testing

Quality score: 70/100 · Category: Engineering · Sub-category: testing

Longitudinal SEM skill for latent growth and change. Collects wave structure, checks whether a growth/change model is identified, fits an initial linear growth or latent change specification, and reports fit plus trajectory parameters with a recommendation block. Trigger when the user asks for latent growth models, growth curves in SEM, latent change score models, longitudinal latent trajectories, growth curve modeling, LGM, LCSM, trajectory analysis, or change over time in SEM. Does not handle cross- sectional CFA (use vera-sem-cfa-testing) or non-longitudinal structural models (use vera-sem-full-testing).

What this skill does

Vera Sem Longchange Testing is a production-ready Claude Code skill (quality score 70/100) in the testing sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/vera-sem-longchange-testing/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The Vera Sem Longchange Testing skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It is part of the open ClaudSkills registry, a community-curated catalog of 15,000+ capabilities you can install for Claude Code — the Claude CLI agent.

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/vera-sem-longchange-testing
curl -L https://claudskills.com/skills/vera-sem-longchange-testing/SKILL.md \
  -o ~/.claude/skills/vera-sem-longchange-testing/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/vera-sem-longchange-testing/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/vera-sem-longchange-testing/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\vera-sem-longchange-testing\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

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