The following data show the results from an independent-measures study comparing two treatments.
a. Compute the independent-measures t statistic for these data.
b. Compute the percentage of variance explained by the treatment effect (r²).
b.)Treatment $\begin{array} { l l } \mathrm { I } & \mathrm { II } \\1 & 6 \\6 & 13 \\6 & 12 \\3 & 9 \\\hline \mathrm { M } = 4 & \mathrm { M } = 10 \\\mathrm { SS } = 18 & \mathrm { SS } = 30\end{array}$
c. Convert the data into a form suitable for calculating the point-biserial correlation, and compute the correlation. (You should find that squaring the point-biserial correlation will produce the same r² value that you obtained in part

Question

The following data show the results from an independent-measures study comparing two treatments.
a. Compute the independent-measures t statistic for these data.
b. Compute the percentage of variance explained by the treatment effect (r²).
b.)Treatment

\begin{array} { l l } \mathrm { I } & \mathrm { II } \\1 & 6 \\6 & 13 \\6 & 12 \\3 & 9 \\\hline \mathrm { M } = 4 & \mathrm { M } = 10 \\\mathrm { SS } = 18 & \mathrm { SS } = 30\end{array}

c. Convert the data into a form suitable for calculating the point-biserial correlation, and compute the correlation. (You should find that squaring the point-biserial correlation will produce the same r² value that you obtained in part

Quizplus · Accepted Answer

The Answer of The following data show the results from an independent-measures study comparing two treatments. a. Compute the independent-measures t statistic for these data. b. Compute the percentage of variance explained by the treatment effect (r²). b.)Treatment $$\begin{array} { l l } \mathrm { I } & \mathrm { II } \ 1 & 6 \ 6 & 13 \ 6 & 12 \ 3 & 9 \ \hline \mathrm { M } = 4 & \mathrm { M } = 10 \ \mathrm { SS } = 18 & \mathrm { SS } = 30 \end{array}$$ c. Convert the data into a form suitable for calculating the point-biserial correlation, and compute the correlation. (You should find that squaring the point-biserial correlation will produce the same r² value that you obtained in part

The Following Data Show the Results from an Independent-Measures Study