PSYC 1030H Lecture Notes - Lecture 4: Westron, Phonological Development, Prenatal Development
3 Feb 2017
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Document Summary
Uses the same individuals repeatedly over long periods of time (weeks or months to years and decades) Advantages-allow researchers to directly monitor change over time in the same group of individuals. Disadvantages-biased results (there may ne important differences between participants who complete the study and those who drop out) People of different ages are studied at the same point of time. Advantages-it can be conducted much more quickly (and usually more cheaply) Disadvantages-vulnerable to he problem of cohort effects. Cohort effect: differences between individuals of different ages may be the result of different social conditions of the periods in which they grew up (rather than age) Potential problems: teratogen: any agent that can harm an embryo or fetus. Same defect can be cause by different teratogens. Some effects not apparent until later in life. Substance use; alcohol: 12. 9% us/canadian women use alcohol during pregnancy, no safe dose of alcohol. Infant symptoms related to alcohol use: 1 in 300 births.
