Williams Gladys, Pérez-González Luis Antonio, Queiroz Anna Beatriz Müller
Applied Behavioral Consultant Services, New York, USA.
J Appl Behav Anal. 2005 Winter;38(4):555-8. doi: 10.1901/jaba.2005.65-04.
A combined blocking procedure was used to teach a child with autism to select two colors on request. First, two color cards were placed at fixed locations on a table and the experimenter repeatedly requested the child to touch one of the colors. After 10 consecutive correct selections, the child was asked to touch the other color. Blocks of trials with each color were systematically thinned until requests were presented randomly with few errors. Subsequently, the location of the selection cards was systematically alternated until the child was able to touch the correct card when both requests and card positions were presented in random fashion.
采用一种联合阻断程序来教一名自闭症儿童根据要求选择两种颜色。首先,将两张颜色卡片放置在桌子上的固定位置,实验者反复要求儿童触摸其中一种颜色。在连续10次正确选择后,要求儿童触摸另一种颜色。对每种颜色的试验组进行系统地减少,直到随机提出要求时错误很少。随后,系统地交替选择卡片的位置,直到当要求和卡片位置都以随机方式呈现时,儿童能够触摸到正确的卡片。