The following data are from an independent-measures experiment comparing two treatmentconditions. $\begin{array}{c}\begin{array}{c}\text {Treatment 1}\\4 \\5 \\12 \\10 \\10 \\7\end{array}\begin{array}{c}\text {Treatment 2}\\19\\11\\18\\10\\12\\14\\\end{array}\end{array}$

a. Does the data indicate a significant difference between the treatments at the .05 level of significance?
b. Compute r² to measure the size of the treatment effect.
c. Write a sentence demonstrating how the outcome of the hypothesis test and the measure of effect size would appear in a research report.

Question

The following data are from an independent-measures experiment comparing two treatmentconditions.

\begin{array}{c}\begin{array}{c}\text {Treatment 1}\\4 \\5 \\12 \\10 \\10 \\7\end{array}\begin{array}{c}\text {Treatment 2}\\19\\11\\18\\10\\12\\14\\\end{array}\end{array}

a. Does the data indicate a significant difference between the treatments at the .05 level of significance?
b. Compute r² to measure the size of the treatment effect.
c. Write a sentence demonstrating how the outcome of the hypothesis test and the measure of effect size would appear in a research report.

Quizplus · Accepted Answer

The Answer of The following data are from an independent-measures experiment comparing two treatmentconditions. $\begin{array}{c} \begin{array}{c} \text {Treatment 1}\ 4 \ 5 \ 12 \ 10 \ 10 \ 7 \end{array} \begin{array}{c} \text {Treatment 2}\ 19\ 11\ 18\ 10\ 12\ 14\ \end{array} \end{array}$ a. Does the data indicate a significant difference between the treatments at the .05 level of significance? b. Compute r² to measure the size of the treatment effect. c. Write a sentence demonstrating how the outcome of the hypothesis test and the measure of effect size would appear in a research report.

The Following Data Are from an Independent-Measures Experiment Comparing Two