In 1879-80, Hermann Ebbinghaus conducted research on higher mental processes; he replicated the entire procedure in 1883-4.
He again replicated the entire procedure in 1883-4. In 1879-80, Hermann Ebbinghaus conducted research on higher mental processes.
In 1879-80, Hermann Ebbinghaus conducted research on higher mental processes. He again replicated the entire procedure in 1883-4.
In 1879-80, Hermann Ebbinghaus conducted research on higher mental processes. He again replicated the entire procedure in 1883-4.