Hola Joan,  lo que quieres saber es qué pasa con el sujeto en el tiempo de latencia entre que la persona recibe una encuesta y la responde?  Puedes darme más datos? Edad, sexo, tema de la encuesta, etc?

Hi Rodrigo. I'm looking for specific APIs or Software that let me register how many time does it take the participant to process the visual stimuli in a experimental situation and give an appropiate response (e.g. as in the Stroop Effect paradigm or the Implicit Association Test).

Dear Joan,

you can use SosciSurvey – this (free) online-survey tool allows you to directly implement an IAT along with other questionnaires. 

Best,

Ramzi

https://www.soscisurvey.de/index.php?page=home&l=eng

Ok, I understand.

See attached

Dear Ramzi Fatfouta and Okechukwu Eme,

Thanks for your information! I was not familiar with SoSci, and neither with its panel. I wonder how much code-tinkering is allowed when embedding the IAT in the Survey, and how SoSci allow us to modify the stimuli and the experimental blocks.

Best regards,

Joan