Questions Refer to the Following Computer Output in Which a Researcher

question 104

Multiple Choice

Questions refer to the following computer output in which a researcher measured anxiety in a sample before therapy and after therapy. Table 10-2
GROUP $1 =$ Before therapy
GROUP 2 = After therapy
Variable $=$ Anxiety scores


$\begin{array}{lllll}\text { GROUP } & N & \text { Mean } & S D & \text { Standard Error } \\\text { GROUP 1 } & 10 & 11.00 & 3.197 & 1.011 \\\text { GROUP 2 } & 10 & 8.90 & 3.573 & 1.130\end{array}$

$\text { Mean difference }=2.100 \quad\quad\quad S D=1.287 \quad\quad\quad \text { Std Error }=0.417$

$\begin{array}{lll}\text { Corr }=0.934 & p=0.000 & \\t=5.161 & d f=9 & p=0.001\end{array}$
-Consult Table 10-2. How many people are in the sample?

• A) 9
• B) 10
• C) 20
• D) 100

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