Which of these is an example of mobile infants problem-solving when they are outdoors?
a. Pulling a wagon of toys outside
b. Getting a jacket from the cubby
c. Not cleaning up
d. Covering toys with sand and "finding" them.
d
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The claim that eating sugary treats makes kids “hyper” or overly active
a. was started with faulty correlational research and is a myth. b. was started by the milk industry, which wanted to encourage drinking milk instead of soda pop. c. has been demonstrated to be true with experimental research. d. has been demonstrated to be true through the experience of hundreds of teachers and parents.
Systematic bias in a test will affect reliability in what way?
a. decrease it b. increase it c. not affect it d. reduce it to zero
What is the best way to listen to a lecture?
a. Choosing a seat in the back so you will not be called on b. Writing down everything the instructor says verbatim c. Listening with a plan to read your notes at the end of the semester d. Sitting as close to the front of the room as possible
If you are hypothesizing that posttest scores will be higher than pretest scores, you should use _______.
a. a one-tailed test b. a two-tailed test c. descriptive statistics d. a t-test for independent means