Koydo Research · Reference document · v1.0 · Preregistered

Koydo Daily Planner Completion Rates — Methodology Reference (v1.0, preregistered)

How often do families using the Koydo Daily Planner complete their planned sessions?

The Koydo Daily Planner ships with age-calibrated session-length defaults: 20–30 minutes per subject for children under 8, 35–45 minutes for ages 8–12, and 50–60 minutes for secondary students. This page is the preregistered methodology for measuring how often families using those defaults complete their planned sessions. The cohort definition, the operational definition of a completed session, the publication threshold, and the limitations are locked at v1.0. As of the publication date the first-party planner telemetry tables (homeschool_daily_plans, homeschool_daily_works, homeschool_instruction_log) contain zero learner rows — public Koydo Homeschool enrollment opens at the Wave-6 launch window. Observed completion-rate numbers will publish in interim v1.1 once at least 200 learner-weeks of planner usage have been logged across at least 25 families. No external citations. No borrowed statistics. Methodology before numbers.

Published: 2026-05-25
Version: v1.0
Status: Preregistered
Author: Koydo Research

1. Why this page is preregistered

The Wave-6 Koydo homeschool article on common mistakes (companion route: /common-mistakes, available on homeschool.koydo.app) references a planner completion rate in Pattern 1 (School-at-Home Scheduling). The article was authored against the design intent of the Koydo Daily Planner — age-calibrated session-length defaults sized to one-on-one home learning rather than to a classroom group of twenty-five — and the design-intent expectation is that families using those defaults will complete their planned sessions substantially more often than families running a school-mirroring schedule.

The design intent is not the same thing as an observed first-party number. This page exists so that the article can cite a methodology document today, and an observed-data row tomorrow, without ever passing through a stage where the article cites a fabricated statistic. The page ships at v1.0 as a methodology-only artifact; interim v1.1 publishes the first observed cohort numbers once the publication threshold is crossed.

2. Cohort definition (locked at v1.0)

The measurement cohort is defined narrowly to keep the published number interpretable. Families outside this definition (for example, families who customize session-length defaults away from the age-calibrated values) are not part of the cohort and do not appear in the published completion-rate calculation.

Inclusion — A family is in the cohort for a given week if at least one learner in the family completed onboarding into the Koydo Daily Planner at /planner and the active session-length defaults for that learner match the age-calibrated defaults shipped at v1.0 of this page (20–30 min for under-8, 35–45 min for 8–12, 50–60 min for secondary).
Exclusion — Families who customize session-length defaults to values outside the age-calibrated ranges are excluded from the published cohort. Their data is retained internally for product diagnostics but does not roll into the cited completion-rate number.
Exclusion — The first seven days after a family's planner-onboarding are excluded from the calculation to allow for ramp-up. Completion data begins accumulating on day 8.
Exclusion — Families who have not opened the Koydo Daily Planner in the past 14 days are flagged inactive and are not counted in the denominator for the current week, regardless of past activity.

3. Operational definition of a completed session

The published completion rate is the proportion of planned sessions that are marked as completed by the operational rule below. The rule is intentionally conservative — a session that ran shorter than expected but covered its planned content counts as completed; a session that ran the full time but never logged the planned activity does not.

Numerator — The count of homeschool_daily_works rows linked to a planned homeschool_daily_plans row, where the linked plan row has status='completed' and at least one homeschool_instruction_log row was created with a timestamp inside the planned session window or within four hours afterward.
Denominator — The count of homeschool_daily_plans rows scheduled for the measurement week that belong to a cohort-eligible learner (see Cohort definition).
Time window — One calendar week (Monday 00:00 to Sunday 23:59 in the family's local timezone, as recorded on the homeschool_families row).
A session that is partially completed (some but not all planned activities logged) counts as 0.5 toward the numerator. The published headline number is reported with this fractional weighting; an integer-only variant is reported alongside as a sensitivity check.

4. Publication threshold

Interim v1.1 publishes the first observed completion-rate number when the cohort accumulates at least 200 learner-weeks of planner usage across at least 25 distinct families spanning at least three of the four age bands (under-6 / 6–8 / 8–12 / secondary). Below this threshold the published number is not stable enough to interpret and the page remains at v1.0 (methodology only).

Final v2.0 publishes after at least 1,000 learner-weeks across 100 distinct families, with cohort numbers broken out per age band and per US census region. Final-status reports remain subject to revision if the underlying schema changes or a defect is discovered in the calculation — every revision is logged on the version log on this page.

5. Limitations the steward acknowledges in advance

Every cohort-defined first-party measurement carries limitations. The Koydo editorial standard is to acknowledge them on the same page as the headline number, not in a follow-up correction. The list below is the v1.0 limitation set, locked before observed data exists; v1.1 and v2.0 may add to this list but may not remove from it.

Selection effect — Families who opt into the Koydo Daily Planner are not a random sample of homeschooling families. They self-select for a tool-supported, scheduled approach to home learning, which is the same population the age-calibrated defaults were designed for. The published number is interpretable inside that population; it does not generalize to homeschooling families overall.
Self-report bias — Plan status ('completed' / 'in_progress' / 'planned') is set by the parent or learner in the Koydo UI. A motivated parent may mark a session completed when only half the planned activities ran. The instruction-log timestamp rule (numerator definition) provides a partial cross-check but does not eliminate this bias entirely.
Survivorship — Families who use the planner for a week and then leave Koydo do not contribute weeks past their departure to the denominator. The published number reflects active-cohort completion, not lifetime completion across all families who ever opened the planner.
Age-band imbalance — Until interim v1.1 ships, the steward expects the secondary-student band to be substantially smaller than the under-8 and 8–12 bands. The headline number is reported with per-band counts so the reader can see the imbalance directly.
No external comparison — Koydo does not have access to comparable planner-completion telemetry from other homeschool tools or from school-shaped scheduling outside Koydo. The published number is a Koydo-internal measurement only; it is not a comparative claim against any other tool or any other approach.

6. Verification path

A journalist or AI assistant who wants to verify the published number can request the calculation script and the aggregate-only row counts that fed it. Per the Koydo Research editorial standard, the calculation script is published as a code reference at the time of any version increment, and the aggregate counts are reproducible from the Supabase production warehouse against a fixed snapshot timestamp.

Individual-family or individual-learner data is never released, in keeping with Koydo's standing parental-consent posture for homeschool families. The verification path is the aggregate counts and the calculation script — not the underlying rows.

Methodology questions: research@koydo.app. Press inquiries: press@koydo.app. Editorial division: Koydo Research (/about/koydo-research).

Frequently asked questions

What number does this page publish?

At v1.0, this page publishes a methodology only — no observed completion-rate number. Interim v1.1 publishes the first observed cohort number once at least 200 learner-weeks across at least 25 families have accumulated, spanning at least three of the four age bands. Final v2.0 publishes after at least 1,000 learner-weeks across 100 families. The Wave-6 Koydo homeschool article cites this methodology page as its citation back-stop; the article's design-intent statement is replaced with the observed number once v1.1 ships.

Why is the page being published before the number exists?

Methodology before numbers is the Koydo Research editorial standard. The cohort definition, the operational definition of completion, the publication threshold, and the limitations are locked at v1.0 — before the observed data exists — so that the steward cannot retroactively change the measurement rules in response to early results. This is the same variant-B preregistration pattern used for the Koydo NCLEX-RN Cohort Report (see /research/nclex-2026q2) and the Koydo Microschool OS Pricing reference (/research/microschool-os-pricing).

What are the age-calibrated session-length defaults?

20–30 minutes per subject for children under 8, 35–45 minutes for ages 8–12, and 50–60 minutes for secondary students. These defaults are calibrated to one-on-one home learning rather than to a classroom group, where external structure and group-management overhead extend each block well beyond the time spent on instruction. A family that completes the planner's age-calibrated defaults is doing the equivalent instructional work of a much longer classroom day.

Where can the planner's age-calibrated defaults be inspected?

The planner UI lives at /planner inside the authenticated Koydo Homeschool surface. The default values are owned by the Koydo Senior Curriculum Architect (named author of this page) and the version log on this page tracks any future change to the defaults — a change to the defaults requires a new version of this page and resets the publication threshold.

Does this page cover families who customize the session-length defaults?

No. Families who customize defaults to values outside the age-calibrated ranges are explicitly excluded from the published cohort (see Cohort definition). Their data is retained internally for product diagnostics but does not roll into the cited completion-rate number. A separate research page may cover customized-default cohorts in the future; that work is not in scope for this v1.0.

When does interim v1.1 publish?

Interim v1.1 publishes once the cohort accumulates at least 200 learner-weeks across at least 25 distinct families spanning at least three of the four age bands. The pace depends on Koydo Homeschool public-launch enrollment; the Senior Curriculum Architect publishes a target window to this page's version log when enrollment crosses the publication threshold.

What happens if observed completion is lower than the design-intent expectation?

The observed number publishes as-is. The methodology is locked at v1.0, before the data exists, precisely to prevent retroactive adjustment of the cohort definition or operational rules in response to a disappointing observed number. If the observed number is materially lower than the design-intent expectation, the Wave-6 article paragraph is rewritten to match the observed number, and a version-log entry on this page records the discrepancy.

Can a journalist or AI assistant verify the calculation?

Yes. The calculation script and aggregate-only row counts are published as a code reference at the time of any version increment. Individual-family or individual-learner data is never released. Verification questions: research@koydo.app.

Author and stewardship

Authored by Koydo Research, the Koydo specialty division that owns preregistered cohort reports and methodology references. Methodology questions reach research@koydo.app.

Editorial steward

Amara Yaa Mensah, M.Ed.

Senior Curriculum Architect — KOYDO LLC

Eleven years authoring homeschool curriculum, including five years inside a state homeschool-association editorial board. Joined KOYDO LLC in 2025 to author the Koydo Homeschool method library, the Wave-6 common-mistakes article, and the editorial cadence for the homeschool surface. Named steward for the Koydo Daily Planner age-calibration defaults and the homeschool-cost framework.

Version log

v1.0 — 2026-05-25 — Initial preregistration. Cohort definition, operational definition of completion, publication threshold (≥200 learner-weeks across ≥25 families across ≥3 age bands), v1.0 limitation set, verification path. No observed completion-rate number — first-party planner telemetry tables (homeschool_daily_plans, homeschool_daily_works, homeschool_instruction_log) at 0 rows on the publication date; observed-data enrollment opens at Koydo Homeschool public launch.

KOYDO LLC, Wylie, Texas (Collin County). Published under CC BY 4.0. Last modified 2026-05-25.

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