Direct Measures of Medication Effects: Exploring the Scientific Utility of Behavior-Analytic Assessments.

The purpose of the current study was to explore the scientific utility of two behavior analytic assessments (i.e., progressive ratio and demand assessments) for psychotropic medication evaluation.

Randomization Tests for Single Case Designs with Rapidly Alternating Conditions: An Analysis of -Values from Published Experiments.

Two common barriers to applying statistical tests to single-case experiments are that single-case data often violate the assumptions of parametric tests and that random assignment is inconsistent with the logic of single-case design. However, in the case of randomization tests applied to single-case experiments with rapidly alternating conditions, neither the statistical assumptions nor the logic of the designs are violated. To examine the utility of randomization tests for single-case data, we collected a sample of published articles including alternating treatments or multielement designs with random or semi-random condition sequences.

Experimental analysis of stereotypy with applications of nonparametric statistical tests for alternating treatments designs.

Introduction: Stereotypy is common in individuals with developmental disabilities and may become disruptive in the context of instruction.

Purpose: The purpose of this study was to embed brief experimental analyses in the context of reading instruction to evaluate effects of antecedent and consequent variables on latencies to and durations of stereotypy.

Method: We trained a reading instructor to implement a trial-based functional analysis and a subsequent antecedent analysis of stimulus features for an adolescent with autism in a reading clinic.