1. Editorial

   EditorialNotes Pages: 1 - 2

2. Recall norms of common spaces and activities of college students

   • Darrell L. Butler
   • Paul M. Biner

   Methods & Designs Pages: 3 - 12

3. Automated offset compensation for DC biopotential measurements

   • Thomas F. Collura
   • Christopher R. Edwards
   • Richard C. Burgess

   Instrumentation & Techniques Pages: 13 - 20

4. The effects of a plastic-film covering on vibrotactile pattern perception with the Optacon

   • Roger W. Cholewiak
   • Amy A. Collins

   Instrumentation & Techniques Pages: 21 - 26

5. A Commodore 64-based interface system for the operant laboratory

   • C. D. L. Wynne

   Computer Technology Pages: 27 - 33

6. Micromanaging time: Measuring and controlling timing errors in computer-controlled experiments

   • Carl P. Creeger
   • Kevin F. Miller
   • David R. Paredes

   Computer Technology Pages: 34 - 79

7. Assessing the fit of dichotomous item response theory models

   • R. J. De Ayala

   Abstracts/Algorithms Pages: 80 - 81

8. A program to compute nonparametric partial correlation coefficients

   • Carl Craig Morris

   Abstracts/Algorithms Pages: 82 - 86

9. Notices & Announcements

   Announcement Pages: 87 - 89