316 REPORTS ON THE STATE OF SCIENCE, ETC. 



(4) Tests involving ' carry over ' from X-part to Y-part. 



(Examples : Cancellation (Bernstein) : Increase Induction 

 (Stephenson).) 



C. General Instructions. 



Where it is possible, the following instructions may be given, or the follow- 

 ing directions followed : — 



(i) Use J-in. squared paper, with instructions that each symbol should 



fill one square, 

 (ii) Give clear instructions as to the sequence in which reverse or mirror- 

 wise symbols have to be written, and emphasise that all such symbols 



have to be written in that, and no other, way. 

 (iii) Give pauses to allay local muscular fatigue, 

 (iv) Give instructions that as many symbols as possible have to be 



written in the given time, but with good quality, which must be 



maintained throughout, 

 (v) Allow a short fore-practice trial, so that instructions will become 



familiar, and so that the fair trials can proceed with a minimum of 



disturbance from beginning to end. 



D. Standard Times for Tests of Class I. 



Using the SS-writing test as an example, the testing might proceed as 

 follows : — 



(i) Fore-practice trial : 



a. Writing S S S S S S . . 30 seconds 



b. „ 8 8 3 8 8 8 . . 30 

 c „ S 8 S 8 S 8 •• 30 



(As much time as necessary is spent in giving instructions prior to 

 a, b and c.) 



(ii) Fair Trial : 



a. Writing S S S S S S 



b. „ 8 8 8 8 8 8 



c. „ S S S S S S 



d. „ 8 8 8 8 8 8 



e. „ S S S S S S 



f. ,, 8 8 8 8 8 8 



g. „ sas.gse 



(Allow 10 seconds pause between a-b, b-c, c-d, e-f, and f-g, and 

 20 seconds between d-e. Directions for subsequent activity are given 

 during this pause.) 



Two such fair trials are recommended. 



E. Scoring for Tests of Class I. 



(1) Some attempt should usually be made to apply suitable and con- 

 sistent corrections, where necessary, to the writing in (g), if it 

 differs markedly in quality or size from that in parts (a) to (f). 



(ii) Scores a, b, c . . . g are the numbers of correctly and adequately 

 written symbols in the respective parts. Corrections made by the 

 subject to symbols in part (g) are counted as errors, even though 

 the final correction may have resulted in a correctly formed symbol. 



