square
a number multiplied by itself
standard deviation (s)
measure of variation that approximates the average distance to the mean for a set of scores. the square
root of the variance.
standard error
absolute value
an unsigned value
alternate hypothesis
the experimental hypothesis that a difference or relationship exists
asymptotic
approaching, but not touching, the axis
biased estimate
an approxi
correlation (r or roe)
an indicator of bivariate linear relationship that gives the direction and strength of the relationship
covariance
an indicator of bivariate relationship that gives the directio
ordinal
a level of measurement that characterizes non-numeric information with values that can be ranked
paired samples
samples in which a non-arbitrary one-to-one matching or members is possible
para
inferential statistics
techniques for testing hypotheses about populations on the basis of simple information
integer
a whole number, one with no fractional part
interpolation
the calculation of a num
What are the steps of the scientific method?
pose a question, develop a hypothesis, test the hypothesis, draw conclusions, report the results
Why is study replication so important?
because a hypothesi
What are cross-sectional and longitudinal studies? How do they differ?
cross sectional - cohort. longitudinal - attrition, collecting data repeatedly on the same individuals as
they age.
What is a cor
How large is the typical newborn?
7.5 lbs, 20 inches
What is head-sparing?
the biological mechanism that protects the brain when the body is malnourished
What is the last part of the brain to mature?
What is the usual order of the development of spoken language?
reflexes, cooing, babbling, spoken words
What is cooing? Babbling? Holophrasing?
cooing (vowels) babbling (uses consonants ba-ba-ba) holo
What are X linked conditions? Which is most common?
x linked conditions are most common in boys. color blindness is very common.
Once genetic counseling has taken place, who makes decisions about the