a research method in which an investigator manipulates one or more factors (independent variables) to observe the effect on some behavior or mental process (dependent variable)
a technique for ascertaining the self reported attitudes or behavior of people, usually by questioning a representative, random sample of them
Please allow access to your computer’s microphone to use Voice Recording.
We can’t access your microphone!
Click the icon above to update your browser permissions above and try again
Reload the page to try again!
Press Cmd-0 to reset your zoom
Press Ctrl-0 to reset your zoom
It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.
Your microphone is muted
For help fixing this issue, see this FAQ.
NEW! Voice Recording
Click the mic to start.