All of the following statements about Early Head Start are accurate except
a. conclusions about its effectiveness are limited because a random-assignment design was not used
b. Early Head Start services may be delivered in center-based or home-based settings or a combination of these settings
c. Early Head Start services include early childhood education, parenting education, health and mental health care, nutrition education, and family support
d. children in Early Head Start are more likely than children in the comparison group to receive high quality nonparental child care
A
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For a sample with a standard deviation of s = 8, a score of X = 42 corresponds to z = –0.25 . The mean for the sample is M = 40
Indicate whether the statement is true or false
According to Walter (2001), progression from initial substance use to substance abuse follows a(n) ____ sequence
a. typical b. atypical c. haphazard d. heterogeneous
Anna's doctor is looking at the activity in her prefrontal cortex and the size of her ventricles to determine possible causes of her schizophrenia. Anna's doctor endorses the __________ view of schizophrenia
a. psychodynamic c. biological b. learning d. cognitive
In a study of twins reared apart in the 1980s and 1990s, a sample of identical twins who were raised in separated environments produced scores on three measures of intelligence that were as similar to each other as a sample of twins who were raised together. Though the sample sizes were relatively small, this research has been repeated with approximately the same findings. We can have some confidence that these findings are valid because of the critical thinking principle of
A) replicability. B) falsifiability. C) Occam's Razor. D) extraordinary claims.