CHAPTER 11 ANSWER
KEY

1 
Analysis of variance 
2 
Means 
3 
two 
4 
T 
5 
sample; population 
6 
One 
7 
T 
8 
Factor 
9 
one IV; one DV; and independent samples 
10 
Level of anxiety as measured by the SCAS total score 
11 
within subjects 
12 
all 
13 
The three populationsone for each diagnostic grouphave the
same mean level of anxiety (as measured by the SACS total scores);
Ho: m1
= m2 =
m3 
14 
at least two 
15 
sums of squares; mean square 
16 
3 
17 
30 
18 
within groups 
19 
2.5 
20 
F 
21 
F 
22 
3 
23 
1 
24 
equal population variances 
25 
Ho: s12
= s22 = s32 
26 
failtoreject 
27 
T 
28 
Eliminate outliers; transform the data; use a different test procedure 
29 
don't 
30 
how large the samples should be 
31 
means; 1; 1 
32 
F 
33 
F 
34 
5 
35 
26.19 
36 
10 (including the plevel) 
37 
10 
38 
b (smaller than 50) 
39 
c (it was unaffected by Bonferroni) 
40 
a (it got larger) 
41 
T 