Author Question: What percent of a distribution is located above a z-score of -1.00? What will be an ideal ... (Read 18 times)

PhilipSeeMore · **on:** Jun 20, 2018

What percent of a distribution is located above a z-score of -1.00?

What will be an ideal response?

Question 2

If a researcher is interested in whether a new training technique affects
reading achievement scores, and the group chosen for the study is already high
in reading-achievement levels, the lack of any further significant increase may
be due to

the
a. researcher having chosen the .05 rather than the .01 level of statistical
significance
b. halo effect
c. Hawthorne effect
d. ceiling effect