This website includes composite tables of aphasia treatment studies reported in the literature. The studies have been grouped according to the nature of the primary outcome variable (e.g., lexical retrieval). In other words, the studies are grouped by the dependent variable of interest in the study.
The tables include information regarding the study design, number of participants (n), class (C), and phase of treatment research (Ph), and the type of treatment. NEW: You can now sort by Year, Design, Class, and Phase.
Study Designs are coded as follows:
G b/t = Between group design
G w/in = Within group design
SS = Single subject design
CS = Case study (non experimental)
Class of Study coded in accordance with American Academy of Neurology guidelines (2001)
| Class | Stength | Evidence provided by: |
|---|---|---|
| 1 | Strongest | One or more well designed randomized control trials, including meta-analyses of such trials |
| 2 | Intermediate | Well designed observational studies with concurrent controls. Single subject multiple baseline studies across subjects. |
| 3 | Weakest | Expert opinion, case studies, case reports, studies with historical controls. Single subject multiple baseline studies across behaviors. |
Phase of treatment research is coded according to Robey and Schultz (1998)
| Phase | Type | Goals |
|---|---|---|
| 1 | Pre-efficacy | to determine if there is evidence to suggest that a tx has therapeutic value |
| 2 | Pre-efficacy | to develop, standardize, validate, and optimize procedures to explain why treatment works; who are ideal candidates |
| 3 | Efficacy | tests tx efficacy under ideal conditions |
| 4 | Effectiveness | to determine effectiveness of treatment under ordinary conditions of use |
| 5 | Effectiveness | explore efficiency, cost-benefit, patient and family satisfaction, the influence of treatment on patients' quality of life |
