PSYC 2650 Study Guide - Midterm Guide: Central Tendency, Classical Conditioning, Space Shuttle Challenger

• School: University of Guelph
• Department: Psychology
• Course: PSYC 2650
• Professor: Dan Meegan

Document Summary

Herman ebbinghaus started with formed ideas and looked backward to find sources, studied how memory developed and was able to bring many variables under scientific control. To calculate the retention savings: study time before ri minus study time after ri divided by study time before ri. A retention interval of 20 mins: study time before ri=1000 seconds, study time after ri=400 seconds:-- savings=(1000-400)/1000=60% The forgetting function of ebbinghaus the retention of nonsense syllables is measured by savings in relearning, retention decreases as the retention interval (time between initial learning and the retention time) increases, but the rate of forgetting slows down. Extended practice (overlearning): after learning the list until 2 perfect recitals, one rehearsed list 30 more times using a 24hr ri, savings in relearning this overlearned list was 64%, compared to 34% for normal learning. Serial order: strength of the association between adjacent items on the list and direction of associations (forward and backward)