Two column addition

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Screenshot of PEBL's Two-column Addition Task

Contents

[edit] About

Two-column addition task: add three two-digit numbers.

[edit] Notes

Located at twocoladd/twocol.pbl

[edit] Options

Instrumentation variables at the top available to control:

  • The number of practice trials (10)
  • total trials (45)
  • isi (5 ms)
  • time limit per trial (15 sec)

These are changed near the top of the file:

 numPracticeTrials <- 10
 numTrials         <- 45
 isi <- 5
 gTimeout <- 15000

[edit] Data Output

Data is saved to file twocol-<gsubnum>.csv. Columns are:

sub cond trial num1 num2 num3 sum resp corr toolong clicks starttime firstclick completetime
  • sub: subject code
  • cond: practice vs. test
  • num1,num2,num3: three numbers to add
  • sum: the total
  • resp: the answer given
  • corr: whether this was correct
  • toolong: whether itwent beyond the gTimeOut
  • clicks: how many keypresses were made (including backspaces)
  • starttime: the absolute time (in ms) that each trial started
  • firstclick: how long it took in ms) to make the first keystroke
  • complettime: how long it took (in ms) to make the entire response (including firstclick time)

[edit] References

  • Ekstrom, R.B., French, J.W., Harman, H.H., and Dermen, D. (1976). Manual for kit of factor-referenced cognitive tests. Princeton, N.J.: Education Testing Service, pp. 115-117.
  • C. E. ENGLUND, D. L. REEVES C. A. SHINGLEDECKER, D. R. THORNE, K. P. WILSON, F. W. HEGGE, (1987). UNIFIED TRI-SERVICE COGNITIVE PERFORMANCE ASSESSMENT BATTERY (UTC-PAB) I. DESIGN AND SPECIFICATION OF THE BATTERY. REPORT NO. 87-10; DTIC Docmuent a182480. http://www.dtic.mil/dtic/tr/fulltext/u2/a182480.pdf
  • Fielder, J. (2010). EEG Study of Learning Effects across Addition Problems. Internal Report: US Army Aberdeen Test Center, Aberdeen, MD (2010).

[edit] To Cite

Mueller, S. T. (2012). The PEBL Two-column addition test. Computer software retrieved from http://pebl.sf.net.

[edit] See Also

PEBL Test Battery

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