A group of chronic inherited disorders characterized by progressive weakening and wasting of voluntary skeletal muscles is called
a. arthritis.
b. cerebral palsy.
c. muscular dystrophy.
d. diabetes.
c
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Answer the following statement(s) true (T) or false (F)
Many cultures do not promote the independence of individuals with disabilities.
A researcher records a sample of 30 exam scores and finds that the population variance for these data is larger than the sample variance. Is this possible?
A. Yes, the population variance is usually larger than the sample variance. B. No, the population variance will only be larger when at least 50 scores are recorded. C. No, the sample variance will be larger because SS is divided by degrees of freedom in the denominator of the variance formula. D. Not possible to know because the scores are not given.
Which is true of performance assessment that asks students to compose a poem?
A. It is inquiry-focused. B. It is a performance. C. It is process-focused. D. It is a product.
According to the textbook and a study published in 2007, what percentage ofU.S. youth reported having experienced unwanted pornography in the last year?
a. ~48% b. ~38% c. ~28%