false; 93
true; 7
true; 93

Question 43

2 / 2 pts
If a variable is measured on a nominal scale, the assumption
that the ________ should not be made.<br>
If a variable is measured on a nominal scale, the assumption that the ________
should not be made.

Question 44

2 / 2 pts
According to Cohen's convention, a value of ________ is a
large effect size.<br>
According to Cohen's convention, a value of ________ is a large effect size.
0.2
340
0.8
0.5

Question 45
Incorrect
0 / 2 pts
Skip to question text.
An article in the journal
Applied Nutritional Investigation
reported the results of a
comparison between a low-calorie soy-protein diet and a low-calorie traditional-
protein diet (Liao, 2007). Twelve obese participants were randomly assigned to
each diet. At the end of the diet period, those on the soy diet lost an average of
2.3% of their body fat (
SD
= 0.55), while those on the traditional diet lost an
average of 1.22% of their body fat (
SD
= 0.50). If we increase the sample size of
this study the width of any confidence interval around the mean difference would
________, but the effect size would ________.

Question 46
2 / 2 pts

As the sample size becomes smaller, the <i>t</i> distributions
become:<br>
As the sample size becomes smaller, the
t
distributions become:

Question 47
Correct!
2 / 2 pts
The statistical concept of <i>p</i> levels is often referred to
as:<br>
The statistical concept of
p
levels is often referred to as:
betas.
alphas.
central tendency.
variability.

Question 48

2 / 2 pts
Measures of effect size:<br>
Measures of effect size:

Question 49
Correct!
2 / 2 pts
The correct formula for effect size using Cohen's <i>d</i> for a
paired-samples <i>t</i> test is:<br>
The correct formula for effect size using Cohen's
d
for a paired-samples
t
test is:
s
s
s
+
s

Question 50
Incorrect
0 / 2 pts
The percentile is the:<br>
The percentile is the:
percentage of scores falling at or above a particular raw score.
same thing as a percentage.
percentage of scores falling at or below a particular raw score.