It is important for parents to have a good idea of when their children should reach
certain developmental milestones. About when does a child begin to put words together
into 2-word sentences?
(a) 4 months (b) 6 months (c) 18 months (d) 4 years
C
You might also like to view...
Dr. Jones is an archaeologist who studies the skulls of human beings who lived thousands of years ago. He has found that many such skulls had circular holes where part of the skull was missing, and reads that this may have been a form of medical treatment called trepanation. Dr. Jones also concludes that some of these patients must have survived this surgical procedure. Which evidence would support this conclusion?
a. drawings and photographs of people who survived the procedure living with a reduction in their symptoms b. writings that were preserved from those who underwent and survived the procedure c. the existence of cracks leading up to and surrounding the surgical skull hole d. growth of the skull bones after the procedure
If you wish to modify your roommate's behavior to clean up, which type of learning would you use and why?
A. classical conditioning-cleaning is a conditioned response B. operant conditioning-cleaning is a voluntary response C. operant conditioning-cleaning is an unconditioned response D. classical conditioning-cleaning can be conditioned using backward conditioning
The foreskin can cover part or all of the glans and retracts back over the frenulum when the penis is erect
Indicate whether the statement is true or false
In a population, the ______ is the mean squared deviation from the mean.
a. mean b. variance c. standard deviation d. range