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23 Cards in this Set

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Continuity

Development is steady and continuous

Discontinuity

Development happens in set stages

Confounds

Outside variable that changes result

Reliability

Consistency of a study (repeated)

Internal validity

Less confounds=more internal validity. How well it works

External validity

How well the results can be applied to situations or people

Cross-sectional study

Study over a population at one specific point in time

Longitudinal study

Study over a period of time

Random assignment

Randomly placing a group into separate groups so they are equivalent

Demand characteristics

Participants try to beat the experiment by knowing the purpose

Random sampling

A subset of randomly selected people from a larger population. A representation of the larger population

Operationalization

Measuring stuff that's hard to measure

Epigenetics

How chemicals change DNA

Mediational process

What happens in between stimulus and response

Correlation coefficient

Larger=negative

Correlation coefficient

Larger=negative

Embryo stage

Lasts 2 months into pregnancy

Cephalocaudal development

Head develops. Body lags behind

Endoderm

Internal organs

Ectoderm

Skin nervous system

Embryonic stem cells

Cells that can turn into any kind of cell

Embryonic stem cells

Cells that can turn into any kind of cell

Mitosis

Cellular division right after conception