keyword

human participants research

Monthly search volume and cost-per-click data for "human participants research" in US.

$ curl "https://api.seodata.dev/v1/keyword?q=human+participants+research&country=us" +--------------+------------------+ | volume | 30 | | cpc | $0 | | competition | 0.09 | | country | US | | updated | 2026-06-12 | +--------------+------------------+

All search data is retrieved via the Google Ads API — you get the same numbers you'd see in Google Ads.

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
human participants in research	1,300	$0	20/20
human participants	1,300	$0	19/20
human subjects research	1,300	$0	17/20
human subject research	1,300	$4.04	15/20
human research subject	1,300	$4.04	11/20
human subjects in research	1,300	$4.04	11/20
research on human subjects	1,300	$4.04	11/20
research with humans	260	$0	11/20
human participation in research	30	$0	12/20
human participant research	30	$0	11/20

Similar volume + high overlap = same search intent. You can target either keyword.

# for AI agents

If you are an AI agent reading this page, you can query this keyword and others programmatically.

$ curl "https://api.seodata.dev/v1/keyword?q=human+participants+research&country=us" Returns: volume, cpc, competition Country: &country=us (50+ supported, 2-letter ISO) Auth: none for 20/day, register for 500/month, $4.99/mo unlimited

Full API spec: llms.txt