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A researcher plans to study the relationship between subject…

A researcher plans to study the relationship between subjects’ baseline cortisol level and their stress level during public speaking. She is concerned that there is a difference in baseline cortisol levels of vegetarians as compared to subjects who eat meat. To reduce the possible effect of diet, she decides not to enroll vegetarians in her study. This is an example of which technique used to control for potential extraneous variables?

A researcher is studying the effect of diabetes education on…

A researcher is studying the effect of diabetes education on patients’ HbA1c. To get a baseline value, the researcher conducts a retrospective review and collects all HbA1cs in the patients’ medical records during the past 2 years. This type of data collection is called:

 Please use the PDF page provided to complete these question…

 Please use the PDF page provided to complete these questions.   3.1 Look at the y-axis and x-axis grid. 3.1.1 What are the coordinates of point A?  ([ans1],[ans2]) (2) 3.1.2 Plot the points B (2,1) and C (6,1) on the grid. (2) 3.1.3 On the graph, join up the points to make a triangle. (1)   3.2 Translate triangle S, 2 left and 3 down.  Label your Triangle T in the Kami tab.     (2)     3.3 Eva translates shape A, 3 right, and 1 up.  She labels her new shape B.         4.3.1 Explain why Eva is wrong.    [ans3] (2) 4.3.2 Re-plot the square on the Kami tab. (1) 4.3.2 What are the coordinates of the correctly translated shape?     Type the coordinates on the re-plotted square. (4)  

1.1 What is the value of the 6 in 3 465 879? [ans1] (1)…

1.1 What is the value of the 6 in 3 465 879? [ans1] (1) 1.2 What number is shown by the arrow?    [ans2] (1)   1.3 Complete the missing numbers. 127 084 = 100 000 + 20 000 + [ans3] + 90 + 4  (1)   1.4 Write a number that will make this statement true.  7 827 309