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To determine the extent of space error movement error and error in perception of length of a line. The instrument consists of a stand with a wooden block. The wooden block on the front has a thick straight line with a fixed arrow and two movable arrow pointers of the same length. The arrows are made in such a way that they act as open ended or closed embedded arrows. On the rear side of the block a wooden scale is embedded. A certain length of the line equal to the fixed line with the help of pointer. The error in perception is measured with the help of scale at the rear.
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Working model- it consists of a wooden board to which a circular disc graduated in degrees is fixed. The disc is fixed with a metallic pointer and graduated metallic arc. The angular position of the metallic arc to the eye can be read with the help of a pointer on the graduated disc. In the middle of the disc is a point which is rotation passes through all the radii along a spherical object corresponding to the surface retina.Perimeter ( Lister type )Automatically records field to 90 degree in all meridians. Thecrier mechanism is smooth, silent and invisible. The patientperceives only the test object to move. Spring check, giving anaudible click to each 15 of rotation of the arc in either directionrenders close scrutiny of dial plate unnecessary, and ensuresaccurate registration. The device can be thrown out of action ifsilent movement is desired. The marker a needle is housed in aretractable tube, sprung to sheath the pint when actuallymarking. A set of interchangeable and permanent washable testobjects is included with the instrument.
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BhatiaBattery of Performance Intelligence Test.Norms available for 11 to 16 years. Bhatia's Battery of Performance Tests of Intelligence, is one of the popular tests of intelligence in India. Despite some of its limitations, such as that it has norms only between 69 to 131 IQ points.It includes cards with different patterns and the children are required to draw these patterns without lifting the pencil.This battery includes 10 designs from the original 17 designs from the Koh's test. The time for first five designs is 2 minutes and for the remaining five the time is 3 minutes.
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Supported by knowledgeable experts, we are providing an extensive series ofBinet Kamat Test.Our offered product is available in diverse configurations to match with the clients demands.Age Group: 3 yrs to 22yrs.
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This is also called Reaction Time Apparatus. It consists of two parts : 1. Reaction time 2. Chronoscope, The reaction time apparatus is a wooden board with screen in the middle. On one side of the screen (subject's side) there are four different colored lights and a press key. The key is connected to the lights. If the key is pressed while the light is on, the circuit will break and the light will go off. The other side (experimenter side) has key which serves to switch on the lights on the subject side. Along with this a buzzer is also fixed on the experimenter side. The experimenter can switch on or switch off the lights or ring the buzzer. Chronoscope is an electrically operated timing instrument which measures very short intervals of time. Whenever the experimenter switches on the lights or the buzzer, the chronoscope starts working and when the subject responds, the chronoscope stops. The reading of the chronoscope gives the reaction time.
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This is simple instrument to check similar sensation at varying lengths. It is essentially a caliper, the jaws of which has two pointed extensions. When the caliper is closed and the extended jaws are touched firmly on forearm of a person who has been asked to close eyes, it gives feeling of a single point touch. Even when the jaws are slightly opened the feeling remains the same. Only at a significant distance does the subject realizes the touch as two point.
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Electrical with zero reset- to demonstrate the phenomenon of trial and error of acquiring a new motor skill. It consists of a mirror drawing box, impulse counter and stylus. The wooden box has a metallic plate with a star pattern grooved in the middle. Over the metallic plate is hinged a screen and the inside of the lid of the box of the carries a mirror.
The box is connected to the mains and the error counter ant the stylus operates through the mirrors.
The screen is placed in such a position that the subject is unable to see directly the star pattern but can see the image in the mirror.
The subject is asked to move the stylus in between the grooved star is such a way that it does not touch the metallic part, while looking at the image in the mirror. Whenever the stylus touches the metallic parts, the circuit is closed and an error is counted along with a buzzer sound.
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This is an improved form of maze learning in whicherror committed can be objectively known. The apparatus has a wooden box. The top of the box has rows and columns of nail heads fixed. The nails are connected to a stylus, a speaker and a bulb. The subject is asked to trace the right path while moving the stylus through the nail heads. If going a wrong path the bulb will glow and a beep will be heard.
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This device examines the steadiness of the handand the fingers. There is a box, on one side of which there are some holes arranged systematically so that they proceed from the widest to the smallest. The subject takes an instrument called the stylus into his hand and inserts it completely and draws it out of these holes successively and Impulse counter available.
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A division of attention apparatus to show that if a job is done one at a time efficiency is more and if more than one jobs are performed simultaneously efficiency is reduced. The apparatus has three vertical rods erected straight on a wooden base and there are black and white discs placed in the central rod. The individual is asked to put black discs in the left rod and white discs in the right rod with left hand. Time taken is recorded. Now if the same individual is asked to repeat the same exercise with left hand and do some writing with the right hand, it is noticed that the efficiency is remarkably reduced.
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The division of attention board consists of a wooden boardwith a circular and triangular groove with a metallic contact point on each. The board is wired inside so that any passage of electric current on it from a battery can berecorded on an impulse counter. The board is connectedas its terminal to a battery. The other terminal of the battery is connected to a metallic stylus through an impulse counter impulse counter. Whenever the stylus passes through the metallic contact point the counter would record once.
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The apparatus demonstrates the phenomenon of Habit Interference with the underlying fact that time taken to accomplish a practiced task is less than time taken to accomplish a new task. The apparatus consists of a tray with many numbered boxes and number indicating cards according to the number of boxes. Work to be done is to make the subject place the numbered cards in the same numbered box. Different situations can be created like the number of the boxes is in serial order or the number of the boxes can be jumbled. Or the subject is made to use right hand first and then left hand. Time taken in different situations is recorded.
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There are two Bars One of these showing the Inspection Bar (I-Bar) having the fixed width the other one is known as Test Bar (T Bar) Mounted on a plate whose width may be increased or decreased through this nob 5 Test Bar available in Instrument.
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The instrument consists of a rotating cylinder. Over the drum is a metallic screen concealing the drum from outside. The middle of screen has a window opening which allows view of small portion of drum. A list of syllables is pasted on the rotating drum. When drum is rotated, the window allows a convenient vision of one syllable at a time.
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Reaction time is also known as physiological time. It refers to the time taken by an organism to elicit a response to a stimulus. The speed with which the organism responds to a stimulus is R .T. This process can be measured in milli secs. Using a chronoscope. Reaction time is also known as the time that lapses between the stimulus and the response. This lapse of time is due to message transmission by the receptor nerves to the higher brain centers and dispatches of signals from these brain centers to the motor organs to respond. R.T. varies from organism to organism and depends on nature of stimulus such as intensity, length of presentation, attitude etc. To establish this phenomenon R.T. apparatus is used.
For comparative study of right hand and left handfinger dexterity of a person. It consists of a woodenbox containing 100 holes. There are pins keptseparately to be placed in these holes. While keeping the apparatus on the right side of the subject, he/she is asked to insert pins in the holes with right hand. Time taken and errors committed are noted. Same procedure is repeated with left hand keeping the instrument to the left hand side of the subject.
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A Printed paper with design is fixed on a metal plate. This plate is manipulated in X_Y plane i.e. front back and left right direction by two handles. A spring-loaded pencil fied to a bracket traces on the design when the metal plate is manipulated.
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To study the nature as well as progress in learning throughmaze. The apparatus consists of a wooden block and hasgrooved tracks. There are three tracks out of which only one leads to the aim. Time taken in first attempt to reach the aim is more but once practised, and if repeated again time taken to reach the target is much less.
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This is a metallic exposure box with electronic timer to control the exposure time. The exposure time can be adjusted continuously from 0.1 to 5 seconds. Provided with binding posts for calibrating the exposure time setting using chronoscope. It has two card holders, one for the standard card - 3.5" X 5.5" and another for big size cards - 6" X 8". Works on 230 V AC. Supplied with Dot Cards for span of attention.
Other type of cards for span of Apprehension can be ordered extra.
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Colour preference on the basis of paired comparisonmethod. The sample colour is visually matched in the comparator instrument against graded coloured glass filters test discs. A wide selection of discs is available.
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Ambala Cantt, Ambala, Haryana 
