Heredity is of biological significance and hence internal.
Enviornment relates to external factors.
Personality traits and development in a person in psychology, is in relation to a persons reaction to the enviornment in which he grows. Subjecting his heredity traits to a certain external factors or influence, will determine the personality he develops eventually. But still two identical twins may behave differently even if remain in the same enviornment, which will be so because the worldly reactions could be different to both of them and both may have diffrent I Q applied to acertain situation and behave differently yet. Heredity- genes application to I Q is still a subjective issue. Heredity is constant subject to a person which is over with the birth. So how one uses his own I Q to react to his sitaution to either have a good , bad or avaerage personality is matter of individual choice to a far degree on relative levels. And Genetically, science has enough left to qualitatively measure personality traits vs genes, leave alone quantitatively. Hence in Psychology terms it is the reaction to the external factors that helps determining the personality issue, as heredity being a constant feature in an individual is a personality born feature and not developed feature or an issue.

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Elizabeth Gaudino-Goering, Ph.D., Instructor of Psychology Ages and Stages Paper Final Submission Due during discussion of the stage of development you choose: Infancy: Feb 13-Feb 24 Early Childhood: Feb 27-March 16 Middle Childhood: March 19-March 29 Adolescence: April 9-April 13 Early Adulthood: April 16-April 20 Middle Adulthood: April 23-April 27 Late Adulthood: April 26-May 11 5 page paper: This paper will help you pull together everything you know about physical, cognitive, social and emotional development in regard to one person. You must choose one person to study. This person can be your own child, the child of a friend or family member, a friend, a sibling, a parent or other older relative. Your assignment is to observe the subject of your paper closely and as objectively as possible. Follow the instructions below for each aspect of development and report on your findings. You will be graded on BOTH the written paper AND your ability to discuss your findings at appropriate times throughout our class discussions of the stage you choose. How to choose a subject for your paper: Consider several things-? Why are you taking this class? o Nursing & Allied health students: You may want to focus on infancy, early childhood, or late adulthood. Lifespan is included in your curriculum because your discipline requires familiarity with the social, emotional, and cognitive well-being of the people you will most frequently be helping. You will get the most out of this class by focusing your efforts accordingly. o Other students: Choose a developmental stage that most interests you or would be useful for the work you hope to do. ? Who do you live with? It would be easiest to focus on a person who you have known all or most of their lives or one who you can spend some time with in the coming weeks.
Elizabeth Gaudino-Goering, Ph.D., Instructor of Psychology ? Look at the due dates above.