Exam 15: Repeated-Measures and Matched-Subjects Designs Interval Data

The final goal of the independent t is to

With any t test, independent or paired, the loss of degrees of freedom causes

Rejecting the null hypothesis when it should have been accepted, causes the

With an extremely powerful test, the probability of a Type 1 error is eliminated.

For previous question, should Ho be rejected? If rejected, state the alpha level.

With interval data from a three-group, matched design, the appropriate test would be the within-subjects ANOVA.

When attempting to establish differences among three sets of matched interval scores, the appropriate test is the

The more powerful a given statistical test is, the greater its likelihood of

For question 85, should Ho be rejected as a two-tail t? If rejected, state the alpha level.

Group 1 Group 2 10 6 4 4 12 9 5 3 4 3 6 5 8 7 7 4 -Using the data above , calculate an independent t.

When analyzing data from a repeated-measures design, if the correlation is significant, the paired t increases the test's power.

For question 87, should Ho be rejected as a two-tail t? If rejected, state the alpha level.

Group 1 Group 2 13 21 10 19 6 15 1 13 -Using the data above , calculate an independent t.

Should Ho be rejected as a two-tail test? If rejected, state the alpha level.

Other things being equal, the smaller the value of the estimated standard error of difference, the less likely the t ratio will be significant.

Whenever Ho is accepted, when, in fact, it should have been rejected, the error has been committed.

Of the following experimental designs, the one(s) in which sample scores are correlated with each other is (are) the

The paired t may never result in a negative value.

For previous question should Ho be rejected ? If rejected, state the alpha level.

When the independent t is used on data which are really correlated, there is an increased likelihood of