A memory researcher wanted to test the impact of various strategies to improve memory. She randomly assigned 10 subjects to each of four groups. All subjects were presented a list of words to recall. One group she presented the words and then tested recall (Control). In another group she told the subjects to associate the words with a particular location in their house (Loci). Another group she told the subjects to imagine think of an image of each word. Lastly a final group was instructed to think of a word that rhymes with each word (Rhyme). The number of words recalled by each subject is listed below.

Control Loci Image Rhyme

11 10 13 16

4 18 16 9

8 6 3 7

3 20 6 10

11 15 13 9

8 9 10 14

2 8 13 16

5 11 9 3

8 12 5 9

5 12 19 12

In the space below conduct pairwise comparisons using the Scheffe, Bonferroni, Tukey, Neuman Keuls and LSDfor the memory study above. Place the work for each test (show all work) below the label for each test and be specific when you state you conclusions.

	N	Mean	Std. Deviation
1.00	10	6.5000	3.17105
2.00	10	12.1000	4.40833
3.00	10	10.7000	5.05635
4.00	10	10.5000	4.08928
Total	40	9.9500	4.58509

Control Loci Image Rhyme

6.5 12.1 10.7 10.5 mean recall

Scheffe

• Scheffe critical value =

Scheffe conclusions

Bonferroni (show all work for Bonferroni below)

Bonferroni critical difference =

Bonferroni conclusions

Tukey test (show all work for Tukey below)

Tukey critical difference =

Tukey conclusions

Neuman Keuls (show all work for Neuman Keuls below)

NKcd4 =

NKcd3 =

NKcd2 =

Neuman Keuls conclusions

LSD (show all work for LSD below)

LSD critical difference =

LSD conclusions