Question

Are these answers correct? If not, what are the correct ones?

A researcher is interested in whether using your finger to follow the words you are reading changes reading speed. She has students complete a reading speed test, first without using their fingers to follow the words and then again while using their fingers to follow the words. The researcher randomly selects a sample of 56 students who, at the beginning of the study, scored an average of 256 words per minute on the reading speed test. In the trial where they used their fingers while they read, the students scored an average of 6 words per minute higher. The standard deviation of the difference scores was 29. Since the sample size is larger than 30, the researcher can assume that the sampling distribution of Mo is normal. She uses a repeated-measures t test to test that the mean difference is zero, and she describes the results as follows: In the trial where they used their fingers while they read, the reading speed among students is not significantly different than when they do not use their fingers while they read, t(55)-1.55, p-0.127. If the researcher had used a repeated-measures ANOVA to test that the mean reading speed is the same before and after using their fingers while they read, she would describe the results as follows (fill in all missing values): In the trial where they used their fingers while they read, the reading speed among students is significantly different than when they do not use their fingers while they read, F 55 )-2.40 , p-0.127. 1

Answer 1

In the trial where they used their fingers while they read, the reading speed among students is not significantly different than when they do not use their fingers while they read, F(1, 55) = 2.40, p = 0.127.