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ON VOCATIONAL TESTS. 28: 
APPENDIX C—continued. 
QUALITY. DESCRIPTION OF TEST. 
Technical intelligence. (i) Technical diagrams shown, and candidates 
asked—“ What will happen if so-and-so?” 
“What must we do to make so-and-so happen ? ” 
(ii) Parts of apparatus described, candidate to 
say how they interact. 
(iii) Superfluous lines to be erased from a diagram. 
(iv) Simple diagrams to be reproduced. 
Form relations. (i) Solid lines with irregularly shaped gaps at 
intervals, and pieces, from among which the 
candidate must select those which fill gaps. 
(u) Three cubes are shown, piled together in 
various ways, and the candidate has to draw 
them as they would appear from various angles. 
Motor ability. (i) Bending wire into appointed shapes. 
(ii) Assembly. 
APPENDIX D. 
EXAMPLES OF TESTS. 
1. REPEATED REACTIONS OF THE SAME KIND. 
(i) Placing three dots as quickly as possible in each of a number of circles. 
(Mechanical ability test : University of Minnesota.) 
(ii) Plaiting threads as quickly as possible. 
(Dressmakers’ test : Technische Hochschule, Stuttgart.) 
(iii) Threading a series of small discs, each perforated with six holes, on to a group 
of four mounted needles. 
(Hand-workers : Siemens-Schiickert.) 
2. VisuAL TESTS (ACCURATE ESTIMATION OF SIZE, DISTANCE, ETC.). 
(i) Bisecting lines and angles by eye. 
(Used almost universally.) 
(ii) Adjusting a string fastened at one end until it appears parallel to a fixed string. 
(Dressmakers: Technische Hochschule, Stuttgart.) 
(iii) Placing discs 
(a) As nearly as possible in the centre of large circles. 
(Labellers in chemical works : Technische Hochschule, Darmstadt.) 
(b) As exactly as possible on circles of the same size drawn on paper, in time 
with a metronome. 
(Manual ability test: N.I.I.P.) 
3. EsTmMATION OF VELOCITY oF MOVEMENT. 
(i) Three parallel horizontal strips have black lines across them at irregular inter- 
vals. Each strip can move at various speeds either towards or away from the 
candidate. Certain sections of the strip are covered. 
1. The three strips are set moving, and the candidate has 
to watch for the moments when three black lines 
come together to form a single line; when this 
happens he presses a brake which stops the apparatus 
momentarily. : 
2. The candidate has to estimate the moment at 
which the marks will come together, under the 
covered section, and use the brakes as -before. 
(Engine drivers : Laboratory of the University of Hamburg.) 
