Question

Miller (1956), in a classic study, demonstrated that participants can store a fixed amount of words in their short term memory. You believe you can train students to be able to increase their short term memory by having them generate a story to connect the words they are supposed to memorize together. You pre-test a group of 22 participants to see how many words they are able to remember from a list. Then you train the participants to be able to make a story from the words on the list so that they can remember more. After the training you give them a post-test. You expect that they will be able to remember more words after the training (i.e. that the post-test will be higher than the pre-test). Analyze the data below with a paired samples one-tailed t test, and write a conclusion statement. Show your work.

Pretest mean = 6

Posttest mean = 9

Standard error of the difference = 0.9

Answer 1