# EPPP- Design Under Scrutiny — Experimental Controls, Blinding, and Threats to Validity Page: https://stenobird.com/podcast/eppp-study-podcast-7349262/eppp-design-under-scrutiny-experimental-controls-blinding-and-threats-to-validity Text version: https://stenobird.com/podcast/eppp-study-podcast-7349262/eppp-design-under-scrutiny-experimental-controls-blinding-and-threats-to-validity.md Podcast: [EPPP Study Podcast-](https://stenobird.com/podcast/eppp-study-podcast-7349262) Published: 2026-07-20T10:40:02+00:00 Episode link: https://www.spreaker.com/episode/eppp-design-under-scrutiny-experimental-controls-blinding-and-threats-to-validity--73059868 Audio file: https://dts.podtrac.com/redirect.mp3/api.spreaker.com/download/episode/73059868/podcast_1784499510.mp3 Processing state: not_requested JSON: https://stenobird.com/v1/public/podcasts/eppp-study-podcast-7349262/episodes/eppp-design-under-scrutiny-experimental-controls-blinding-and-threats-to-validity Duration seconds: 563 ## Resource This episode breaks down the experimental design content the EPPP loves to test — independent and dependent variables, randomization, blinding, and the specialized designs like Solomon Four-Group and Latin Square. We walk through every threat to internal validity, from history to regression to the mean, and translate each one into a real psychology example you can hold onto in the exam room. This is clarity of thinking, not memorization, built one design element at a time. ## Actions - request_transcript: `POST https://stenobird.com/v1/public/podcasts/eppp-study-podcast-7349262/episodes/eppp-design-under-scrutiny-experimental-controls-blinding-and-threats-to-validity/transcription-requests` — Idempotently request low-priority transcript generation for this episode. - read_markdown: `GET https://stenobird.com/podcast/eppp-study-podcast-7349262/eppp-design-under-scrutiny-experimental-controls-blinding-and-threats-to-validity.md` — Read the agent-friendly Markdown representation of this episode resource. A page view does not enqueue transcription. Agents should invoke `request_transcript` explicitly when they need this episode processed. ## Transcript Full transcripts are not published on public pages unless there is a clear rights basis.