You lead a product-testing unit for a large sports nutrition company. Your team has conducted forty trials of a new energy supplement but you are not sure if the results are conclusive enough to urge the company to start producing it. A new data analyst has joined your team suggesting that meta-analysis might be a good idea, do you agree?
A. No, because the forty trials were identical and tested the same research question we cannot calculate an average significance for the new supplement.
B. No, because the forty trials were identical and tested the same research question we cannot calculate an average effect size for the new supplement.
C. Yes, because the forty trials were identical and tested the same research question and therefore we can calculate an average significance for the new supplement.
D. Yes, because the forty trials were identical and tested the same research question and therefore we can calculate an average effect size for the new supplement.
Answer: D
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In which theme from the national science education standard of Unifying Concepts and Processes would students deal with data obtained from experimentation?
A. change and measurement B. evidence, models, and explanation C. evolution and equilibrium D. order and organization
Which of the following would one expect to see in a student's portfolio?
a. Sample journal entries. b. Audiotapes of teamwork. c. An observation checklist, filled out by the teacher. d. A written test, with errors corrected. e. All of these.
Handedness shows that children have developed:
a. dexterity. b. directionality. c. left-right dominance. d. prehension.
In IBM SPSS, what does clicking on this icon do?
A. Enable you to select particular cases. B. Show you the variables in the data editor and summary information about each one. C. Enable you to search for words or numbers in your data file and output window. D. Insert a new case in the data editor (i.e., creates a blank row at the point that is currently highlighted in the data editor).