PSYC 302 Lecture Notes - Naturalistic Observation, Structured Interview, External Validity
Document Summary
Methods for studying child development: the scientific method, an approach to testing beliefs that involves, 1. Formulating a hypothesis (i. e. , an educated guess: 3. Importance of appropriate measurement: relevance to hypotheses, reliability, validity. Reliability: the degree to which independent measurements of a given behavior are consistent. Interrater reliability: the amount of agreement in the observations of different raters who witness the same behavior: test-retest reliability: attained when measures of performance are similar on two or more occasions. Head turn: very young infants, measure orientation, turns head to orient to a sound, older infants, measure discrimination, conditioned head turn procedure. High amplitude sucking: takes advantage of sucking reflex. Measures of brain function: event related potential (erp) Infants are fitted with a soft stretchy cap filled with silicone sensors: near infra-red spectroscopy, uses infrared sensors that emit light in brain, the sensors measure oxygenation levels in different areas of the brain, pros.
