Question 1

The following are all terms associated with a paired-samples t test, except:&#10;A) Pretest&#10;B) Paired-sample Fit line&#10;C) Sample means&#10;D) Posttest

Accepted Answer

The other three options are all relevant to a paired-samples t test. A pretest and posttest are typically used to assess changes in a variable before and after an intervention, and the paired-sample t test is used to determine if the means of the two samples are significantly different. The paired-sample fit line is not a term associated with this statistical test.

Question 2

SPSS Statistics displays the following outputs for a t test:&#10;A) Model Summary&#10;B) One-Sample Statistics&#10;C) Paired Samples Statistics&#10;D) ANOVA

Accepted Answer

C

Question 3

Use the following statistic to determine the statistical significance of the paired-sample t test: A) ANOVA Significance B) R² Linear value C) One-Sample Test Significance D) Sig. (2-tailed)

Accepted Answer

The best choice to determine the statistical significance of the paired-sample t test is the "Sig. (2-tailed)" option. This value represents the p-value of the t-test, which indicates the probability of observing the obtained difference between paired samples by chance alone. A p-value less than 0.05 (or the chosen level of significance) would indicate that the difference between the means is statistically significant. The other options are not relevant for this analysis.

Question 4

Use the following SPSS Statistics tool to calculate statistical significance:&#10;A) Paired-Samples T Test&#8230;&#10;B) Descriptive Statistics&#8230;&#10;C) Linear Means&#8230;&#10;D) Chart Editor&#8230;

Accepted Answer

The Paired-Samples T Test tool is best for calculating statistical significance because it is specifically designed to compare the means of two related groups and determine if the difference between them is statistically significant. Descriptive Statistics and Linear Means are useful tools for analyzing data, but do not directly test for significance. Chart Editor is a tool for creating visual representations of data and does not involve statistical analysis.

Question 5

What key do you use to select multiple variables?&#10;A) &#34;Ctrl&#34; on a Windows machine&#10;B) &#34;Command&#34; on an Apple machine&#10;C) Either A or B.&#10;D) Neither A nor B.

Accepted Answer

The key to select multiple variables may vary depending on the operating system being used. On a Windows machine, the "Ctrl" key is used, while on an Apple machine, the "Command" key is used. Therefore, the correct answer is C, which states that either A or B is the correct choice.

Question 6

A paired-samples t test requires two variables at the ordinal level.

Accepted Answer

A paired-samples t test requires two variables at the interval or ratio level of measurement.

Question 7

A paired-samples t test compares a sample mean to a test value.

Accepted Answer

A paired-samples t test compares two means from the same sample or participants, rather than comparing a sample mean to a test value.

Question 8

A paired-samples t test requires two variables at the scale level.

Accepted Answer

A paired-samples t test compares the mean difference between two related measurements, so it requires two variables measured at the same scale level for the same sample or cases, such as pre-test and post-test scores or matched pairs.

Question 9

In research reports, you need to report the t statistic and degrees of freedom.

Accepted Answer

It is important to report the t statistic and degrees of freedom in research reports as they provide crucial information about the strength and significance of the findings.

Question 10

Variables in paired-sample t tests are often called pretest and posttest.

Accepted Answer

The answer of Variables in paired-sample t tests are often...

Deck 13: Paired-Samples T-Test