Unit 3 - D, LaB, SaH Flashcards
types of developmental research methods?
cross-sectional, longitudinal, cross-sequential
cross-sequential definition
GROUPS of participants of DIFFERENT AGES are assessed at ONE POINT IN TIME so conclusions can be drawn about BEHAVIOR DIFFERENCES that may be related to AGE DIFFERENCES
retrospective design?
a type of cross-sectional design where participants report on past experiences
adv/disadv of cross-sequential?
a - specific/accurate info about one point in time
d - limited knowledge of whether environmental factors are at play
longitudinal definition
evaluates a GROUP of subjects at SEVERAL points in time (YEARS) to assess how certain characteristics or BEHAVIORS CHANGE during the course of DEVELOPMENT
adv/disadv of longitudinal?
a - accurate/specific info on one person
d - resources (dedication needed), retention of participants (they could leave whenever), and environmental/generational factors
cross-sequential definition
research design that COMBINES ELEMENTS of the CROSS-SECTIONAL and LONGITUDINAL designs
(different cohorts of specific birth years over a series of time)
adv of cross-sequential
- avoids generalization/generational problems (l)
- avoids confusing the affects of growth with societal conditions (c-sec)
reflex definition
unconscious response to stimuli (that help aid survival after birth) // integrate as the brain develops
list some reflexes
rooting, startling, grasping, walking, & swimming reflexes
describe the reflexes
ROOTING- brush of cheek, turns head and suckles (i by 9mo)
STARTLING - loud noise/falling sensation, sticks out limbs and arches back/head (i by 3mo)
GRASPING- palm stimulus, grasps super strong (i by 3mo)
WALKING - stimulus to bottom of feet initiates walking motions, can actually walk if weight is supported (i by 2mo)
SWIMMING - submerged in water, lungs close up and well
