Blockdesign test is one of major subset of intelligent question test usedin educational and psychological setting. The test is used to assesshuman intelligence by tapping the motor skills and spatialvisualization ability of the client. The client, who is the personbeing tested uses his hands to arrange blocks with different colorsto develop a particular pattern. Once the test is complete, the scorein the block design is allocated by considering the accuracy of thetest taker to match pattern and the time taken to complete the task.The performance of the test taker in the test is an indication of theproper functioning of the parietal and frontal lobes. Studiesindicate that injuries in the head or illnesses such as stroke andAlzheimer’s have a huge impact on the block design test score.Block design performance has also been found to be affected byconditions such as schizophrenia and bipolar disorder. Although thetest is not a definitive diagnosis for the conditions, it is oftenadministered to determine the extent of the resultant injury. Thetest can be administered to individuals of all ages, although it maynot be very applicable to very young clients (Groth-Marnat &Teal, 2000).
Mychoice of the block design test is based on recent studies that havelinked spatial abilities with extraordinary abilities and proficiencyin individuals. Studies suggest that individuals who have goodspatial abilities have higher science and math proficiency. They alsohave special abilities to perform tasks that require speed andprecision such as complicated surgeries. The linkage between spatialabilities and autism has also attracted a lot of attention. Sinceblock design mainly taps the spatial abilities of the client, it willplay a significant role in these studies (Groth-Marnat & Teal,2000).
Groth-MarnatG. & Teal, M. (2000). "Block design as a measure ofeveryday spatial ability: a study of ecological validity".PerceptMot Skills90 (2): 522–6.