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Power Analysis and Sample Size Calculation Portal — 18 websites ranked by shared content topics, category and on-page relevance.

Each result shows its full tech stack, contacts and AI-policy — not just a name · Browse all sites in Science →

Domain	Match	Title	Country/Lang	Category	AI files	Contact	AI-protection
calculator.now ↗	67 match 2 shared topics	Free Online Calculators \| Calculator.now	en	science	robotsllmsaihumans	emailphone	none
calcsolver.online ↗	65 match 2 shared topics	CalcSolver - Free Online Scientific Calculator with Steps	en	science	robotsllmsaihumans	emailphone	partial · 8
csrsef.org ↗	63 match 2 shared topics	CSRSEF Foundation - Supporting Science Education in Central Puget Sound	en	science WordPress WooCommerce	robotsllmsaihumans	emailphone	none
nisep.com.au ↗	63 match 2 shared topics	nisep.org.au - National Indigenous Science Education Program	Australia en	science	robotsllmsaihumans	emailphone	none
nisep.org.au ↗	63 match 2 shared topics	nisep.org.au - National Indigenous Science Education Program	Australia en	science	robotsllmsaihumans	emailphone	none
brainologyacademy.com ↗	63 match 2 shared topics	Brainology Scientific Academy of Jharkhand \| Science Education, Research & Mentorship	en	science	robotsllmsaihumans	emailphone	partial · 8
qorf.org ↗	62 match 2 shared topics	Quorum Outreach and Research Foundation	en	science	robotsllmsaihumans	emailphone	none
constructivist.info ↗	62 match 2 shared topics	Constructivist Foundations	en	science	robotsllmsaihumans	emailphone	none
jcore.info ↗	62 match 2 shared topics	Constructivist Foundations	en	science	robotsllmsaihumans	emailphone	none
rlancejones.com ↗	62 match 2 shared topics	Lance Jones – Ask the next question. Run and find out.	en	science WordPress	robotsllmsaihumans	emailphone	none
7bscience.com ↗	62 match 2 shared topics	Peter Ower, PhD	en	science	robotsllmsaihumans	emailphone	none
activationlab.com ↗	62 match 2 shared topics	Activation Lab \| A national research and design iniative to ignite science learning and inquiry	en	science WordPress	robotsllmsaihumans	emailphone	none
brainmoment.com ↗	62 match 2 shared topics	Brainmoment – Reflections on culture and neuroscience	en	science WordPress	robotsllmsaihumans	emailphone	none
bluemarblespace.org ↗	61 match 2 shared topics	Blue Marble Space	en	science	robotsllmsaihumans	emailphone	none
bmsis.org ↗	61 match 2 shared topics	Blue Marble Space	en	science	robotsllmsaihumans	emailphone	none
3escience.com ↗	61 match 2 shared topics	3E Science: Educate, Engage, Empower	en	science WordPress WooCommerce	robotsllmsaihumans	emailphone	none
academixprints.com ↗	61 match 2 shared topics	Academix Prints	en	science Shopify	robots llmsaihumans	emailphone	none
thelunarian.com ↗	61 match 2 shared topics	The Lunarian	en	science	robotsllmsaihumans	emailphone	none

How the match score works

Each match is a 0–100 similarity score — the higher it is, the more two sites resemble one another. It’s computed automatically from our own crawl data (never from what a site says about itself) by combining several independent signals, so a high score means several of them point the same way:

shared topics how many of the same fine‑grained content topics (IAB sub‑categories) both sites cover — the main signal.
same category whether they sit in the same business / industry category.
content & title how closely their titles and page descriptions line up in wording and meaning.

No single signal decides the result — they’re blended together. Treat the score as a way to rank candidates rather than an absolute percentage; the chips on each result show which signals contributed.