The Central Nervous Systems of young children usually make it possible
a. For remarkable recovery when there is risk.
b. For different parts of the brain to take over certain functions.
c. For resilience.
d. All of the above.
D
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The main internal validity problem of the static-group comparison design is
a. observed posttest differences may be due to preexperimental differences between the groups rather than to the experimental treatment. b. the interaction between the experimental and control treatments. c. the pretest may sensitize subjects to the experimental treatment. d. the matching procedure may result in the loss of too many subjects and thus introduce bias.
When studying, student-athletes may be distracted by which of the following?
a. Physical fatigue and the internet b. All of these choices c. Internet d. Teammates e. Physical fatigue
Advising, guiding, and counseling students are among the professional responsibilities of every middle level classroom teacher
Indicate whether the statement is true or false.
What is the test statistic?
A restaurant wants to know if more people order its “mega meat pizza” or “mammoth vegetable pizza” depending on whether it is a weekend night or a weekday night. The restaurant keeps track of customers’ preference for these two types of pizza (mega meat or mammoth vegetable) and the night of the week it’s ordered (weekend night or weekday night) over 2 weeks. It finds that a total of 150 people ordered one of these pizzas, with 60 ordering mega meat on a weekend night, 20 ordering mega meat on a weekday night, 25 ordering mammoth vegetable on a weekend night, and 45 ordering mammoth vegetable on a weekend night. Conduct the appropriate statistical test to see if there is a difference between the frequencies of customers ordering the two types of pizza. Assume that the expected frequencies are equal, and use an alpha of .05