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Post Hoc Fallacy
false assumption that because one event occurred before another event, it must have caused that event
research design that examines people of different ages at a single point in time
research design that examines development in the same group of people on multiple occasions over time
situation in which the effects of genes depend on the environment in which they are expressed
Ball of identical cells early in pregancy that haven't yet begun to take on any specific function in a body part
Second to eight week of prenatal development, during which limbs, facial features, and major organs of the body take form
period of prenatal development from the ninth week until birth after all major organs are established and physical maturation is the primary change
bodily motion that occurs as a result of self-initiated force that moves the bones and muscles
stage in Piaget's theory characterized by a focus on the here and now without the ability to represent experiences mentally
stage in Piaget's theory characterized by the ability to construct mental representations of experience, but not yet perform operations on them
Piagetian task requiring children to understand that despite a transformation in the physical presentation of an amount, the amount remains the same
Concrete Operations Stage
stage in Piaget's theory characterized by the ability to perform mental operations on physical events only
Formal Operations Stage
stage in Piaget's theory characterized by the ability to perform hypothetical reasoning beyond the here and now
Vygotskian learning process in which parents provide initial assistance in children's learning but gradually remove structure as children become more competent
phenomenon observed in which baby birds begin to follow around and attach themselves to any large moving object they see in the hours immediately after hatching
basic emotional state that appears early in development and is largely genetic in origin
Average Expectable Environment
environment that provides children with basic needs for affection and discipline
the transition between childhood and adulthood commonly associated with the teenage years
Secondary Sex Characteristics
sex-differentiating characteristics that don't relate directly to reproduction, such as breast enlargement in woman and deepening voices in men
supposed phase of adulthood characterized by emotional distress about the aging process and an attempt to regain youth
alleged period of depression in mothers following the departure of their grown children from home
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