Psychology 1000 Chapter 12: Lifespan Development - Part 1

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Laura Fazakas- De Hoog

Document Summary

Development psychology- study of physical, cognitive, & social/emotional changes throughout the lifespan (from conception to death) No change an ability from birth remains constant over life span. Continuous an ability that develops gradually and then remains constant. Discontinuity an ability that progresses in stages. Inverted u-shaped function an ability that peaks at a certain age, then decreases. U-shaped function an ability that disappears temporarily. Longitudinal same individual are studied over long periods of time o o. Study a grade 1 class as they reach grade 8. Subject attrition- subject drop out of study overtime. Practice effects- subjects learn from test through the years. Cross-sectional- people of different ages are studies at the same time o o. Study a group of each grade form grade 1 -8 all at once. Problem: cohort-effects- differences due to different life experiences. Longitudinal-sequential- persons of different ages are studied over long periods of time.