Resources for experimental Project

Hello, can you please find me three apa sources in how many trails i should do my project, im doing a habituation project with partners and need to find 3-4 sources to prove how many trails it takes to get a participant to become habituated to the sound stimuli

Attached Files (PDF/DOCX): Habituation Study Plan (1).pdf, Stage I_ Habitation of Human Participant Responses to an Unconditioned Stimulus.pdf

Note: Content extraction from these files is restricted, please review them manually.

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