# Digit Symbol Substitution Test

FREE for use with an Inquisit Lab or Inquisit Web license.## Available Test Forms

#### Digit Symbol Substitution Task - Keyboard Input - Form 1

###### The Digit Symbol Substitution Task as described by Thorndike (1919). Requires a keyboard.

#### Digit Symbol Substitution Task - Mouse/Touch Input - Form 1

###### The Digit Symbol Substitution Task as described by Thorndike (1919). Optimized for mouse/touchscreen input.

#### Symbol Digit Substitution Task - Mouse/Touch Input - Form 1

###### The Symbol Digit Substitution Task as first described by Thorndike (1919). Optimized for mouse/touchscreen input.

#### Digit Symbol Substitution Task - Keyboard Input - Form 2

###### The Digit Symbol Substitution Task as described by Thorndike (1919). Requires a keyboard.

#### Digit Symbol Substitution Task - Keyboard Input - Form 3

###### The Digit Symbol Substitution Task as described by Thorndike (1919). Requires a keyboard.

#### Digit Symbol Substitution Task - Keyboard Input - Form 4

###### The Digit Symbol Substitution Task as described by Thorndike (1919). Requires a keyboard.

#### Digit Symbol Substitution Task - Keyboard Input - Form 5

###### The Digit Symbol Substitution Task as described by Thorndike (1919). Requires a keyboard.

#### Digit Symbol Substitution Task - Keyboard Input - Form 6

###### The Digit Symbol Substitution Task as described by Thorndike (1919). Requires a keyboard.

#### Digit Symbol Substitution Task - Keyboard Input - Form 7

###### The Digit Symbol Substitution Task as described by Thorndike (1919). Requires a keyboard.

#### Digit Symbol Substitution Task - Keyboard Input - Form 8

###### The Digit Symbol Substitution Task as described by Thorndike (1919). Requires a keyboard.

#### Digit Symbol Substitution Task - Keyboard Input - Form 9

###### The Digit Symbol Substitution Task as described by Thorndike (1919). Requires a keyboard.

#### Digit Symbol Substitution Task - Keyboard Input - Form 10

###### The Digit Symbol Substitution Task as described by Thorndike (1919). Requires a keyboard.

#### Digit Symbol Substitution Task - Keyboard Input - Form 11

###### The Digit Symbol Substitution Task as described by Thorndike (1919). Requires a keyboard.

#### Digit Symbol Substitution Task - Mouse/Touch Input - Form 2

###### The Digit Symbol Substitution Task as described by Thorndike (1919). Optimized for mouse/touchscreen input.

#### Digit Symbol Substitution Task - Mouse/Touch Input - Form 3

###### The Digit Symbol Substitution Task as described by Thorndike (1919). Optimized for mouse/touchscreen input.

#### Digit Symbol Substitution Task - Mouse/Touch Input - Form 4

#### Digit Symbol Substitution Task - Mouse/Touch Input - Form 5

#### Digit Symbol Substitution Task - Mouse/Touch Input - Form 6

#### Digit Symbol Substitution Task - Mouse/Touch Input - Form 7

#### Digit Symbol Substitution Task - Mouse/Touch Input - Form 8

#### Digit Symbol Substitution Task - Mouse/Touch Input - Form 9

#### Digit Symbol Substitution Task - Mouse/Touch Input - Form 10

#### Digit Symbol Substitution Task - Mouse/Touch Input - Form 11

###### The Symbol Digit Substitution Task as first described by Thorndike (1919). Optimized for mouse/touchscreen input.

#### Symbol Digit Substitution Task - Mouse/Touch Input - Form 2

###### The Symbol Digit Substitution Task as first described by Thorndike (1919). Optimized for mouse/touchscreen input.

#### Symbol Digit Substitution Task - Mouse/Touch Input - Form 3

#### Symbol Digit Substitution Task - Mouse/Touch Input - Form 4

#### Symbol Digit Substitution Task - Mouse/Touch Input - Form 5

#### Symbol Digit Substitution Task - Mouse/Touch Input - Form 6

#### Symbol Digit Substitution Task - Mouse/Touch Input - Form 7

#### Symbol Digit Substitution Task - Mouse/Touch Input - Form 8

## References

Dearborn, W. F. (1910). Experiments in learning. Journal of Educational Psychology, Vol 1(7), Sep 1910, 373-388.

Whipple, G.M. (1910). Manual of mental and physical tests. A book of directions compiled with special reference to the experimental study of school children in the laboratory or classroom. Baltimore: Warwick & York.

Woodworth, R.S. & Wells, F. L. (1911). Association tests. Psychological Review Monographs, Vol. 13, No. 57, 85 pp

Gray, C.T. (1913). Communication and Discussion: A new form of the substitution test. Journal of Educational Psychology, Vol 4(5), May 1913, 293-297.

Thorndike, E.L. (1919). A Standardized group examination of intelligence independent of language. Journal of Applied Psychology, Vol 3(1), Mar 1919, 13-32.

Kelly TH, Foltin RW, Emurian CS, Fischman MW (1990) Multidimensional behavioral effects of marijuana. Prog Neuropsychopharmacol Biol Psychiatry. 1990;14(6):885-902.

Elahipanah, A., Christensen, B.K. ; Reingold, E. M.(2011). What can eye movements tell us about Symbol Digit substitution by patients with schizophrenia? Schizophrenia Research, 2011, Vol.127(1), pp.137-143.

Lile, J. A. ; Kelly, T. H. ; Hays, L. R (2012). Separate and combined effects of the GABAB agonist baclofen and Δ9-THC in humans discriminating Δ9-THC. Drug and Alcohol Dependence, 2012, Vol.126(1-2), pp.216-223.