1. The Brown-Peterson Experiment

2. Instructions
On each trial you will see three words that you are to try to remember
Following the three words, you will see a 3-digit number (for example: 526)
As soon as the number appears, you are to begin silently counting backward from that number by threes (526, 523, 520, 517, etc)
Keep counting until you see a set of question marks—they are your cue to write down the 3 words that began the trial
This same procedure will continue for several trials.
Do you have any questions?

3. DOG SHIRT TREE

4. 8 4 1

5. ? ? ?

6. CAR LEG MOUSE

7. 3 1 5

8. ? ? ?

9. PENCIL SPOON ARM

10. 4 4 2

11. ? ? ?

12. CUP TABLE SHOE

13. 7 5 5

14. ? ? ?

15. BOOK CORD TOE

16. 2 1 4

17. ? ? ?

18. FINGER WORD RUG

19. 3 7 8

20. ? ? ?

21. SOCK WINDOW GRASS

22. 5 3 2

23. ? ? ?

24. BACK COFFEE PAGE

25. 4 8 2

26. ? ? ?

27. VOICE HAT PEN

28. 6 3 4

29. ? ? ?

30. Scoring
DOG SHIRT TREE
CAR LEG MOUSE
PENCIL SPOON ARM
CUP TABLE SHOE
BOOK CORD TOE
FINGER WORD RUG
SOCK WINDOW GRASS
BACK COFFEE PAGE
VOICE HAT PEN
Find the total # you got right on the following sets of trials:
6 sec: trials 1,5,7
12 sec: trials 2,4,9
18 sec: trials 3, 6, 8

31. Plot the class data:

32. Typical Data: