Scratch Studio 1.0.1

Scratch Studio 1.0.1

A maintenance release that hardens the statistics engine and fixes calibration input. If you are on 1.0, this update is recommended.

Install

1. Download Scratch-Studio-1.0.1.dmg below.
2. Open it and drag Scratch Studio into Applications.
3. Launch from Applications.

Developer-ID signed and notarized by Apple, so it opens with no security prompt. Requires an Apple Silicon Mac running macOS 11 (Big Sur) or later.

Fixed in 1.0.1

• Advanced statistics now run in the packaged app. Repeated-measures ANOVA, Welch ANOVA, Games–Howell and the Mauchly sphericity check were silently unavailable in the shipped 1.0 build; they now run, and the build is gated so this cannot regress. If you ran any of these in 1.0, please re-check those results.
• The baseline timepoint is no longer significance-tested. In a time course the first timepoint is the pre-treatment baseline, so it no longer receives a significance marker on charts, in the statistics table, or in two-group comparisons. Only later timepoints are tested against the control.
• Percent-closure over time now computes correctly when images are not well-linked. If a project's timepoints do not share well identifiers, closure now falls back to comparing each endpoint against the condition's mean baseline area, instead of drawing a flat, near-zero line.
• Welch's unpaired t-test is now offered for two-condition designs, alongside the two-way ANOVA, for the common endpoint percent-closure comparison.
• Calibration: the Length field accepts keyboard entry again. You can type the real-world length directly, not only nudge it with the stepper arrows.

Free for non-commercial and academic use under the PolyForm Noncommercial License 1.0.0.