University of Kansas.
J Appl Behav Anal. 1978 Spring;11(1):189-96. doi: 10.1901/jaba.1978.11-189.
Multiple-baseline and probe procedures are combined into a "multiple-probe" technique. The technique is designed to provide a thorough analysis of the relationship between an independent variable and the acquisition of a successive-approximation or chain sequence. It provides answers to the following questions: (1) What is the initial level of performance on each step in the training sequence? (2) What happens if sequential opportunities to perform each next step in the sequence are provided before training on that step? (3) What happens when training is applied? (4) What happens to the performance of remaining steps in the sequence as criterion is reached in the course of training each prior step? The technique features: (1) one initial probe of each step in the training sequence, (2) an additional probe of every step after criterion is reached on any training step, and (3) a series of "true" baseline sessions conducted just before the introduction of the independent variable to each training step. Intermittent probes also provide an alternative to continuous baseline measurement, when such measurement during extended multiple baselines (1) may prove reactive, (2) is impractical, and/or (3) a strong a priori assumption of stability can be made.
多基线和探测程序被组合成一种“多探针”技术。该技术旨在对自变量与连续逼近或连锁序列的获取之间的关系进行彻底分析。它回答了以下问题：（1）在训练序列的每个步骤中，初始表现水平是多少？（2）如果在该步骤上进行训练之前，提供了连续执行序列中下一个步骤的机会，会发生什么？（3）当进行训练时，会发生什么？（4）在训练每个先前步骤的过程中达到标准时，序列中剩余步骤的表现会如何？该技术具有以下特点：（1）在训练序列的每个步骤中进行一次初始探测，（2）在任何训练步骤上达到标准后，对每个步骤进行额外的探测，（3）在向每个训练步骤引入自变量之前，进行一系列“真实”基线会话。当在扩展的多个基线期间进行连续基线测量时，间歇性探测也提供了一种替代方法，（1）可能会产生反应，（2）不切实际，和/或（3）可以做出稳定性的强烈先验假设。
