WORD Project: ReadMe file
The Excel file ESRC Intervention (data for 20 children pre and post) contains the picture naming data from 20 children with word-finding difficulties included in an intervention study.
The scores are out of 100 items and relate to up to 8 time points before, after and during research therapy.

A1 - A3 are results from pre-intervention baseline assessments.
A4: post WAIT or first intervention
A5: post first intervention or wash-out phase
A6: post wash-out phase or second intervention
A7: post second intervention or follow-up
A8: post follow-up

These data should be viewed in conjunction with data from the same ESRC-funded study, relating to typically-developing children and children with word-finding difficulties, uploaded by Professor Jackie Masterson.

All of the children included in the study had clinically-significant word-finding difficulties, according to their performance on the Test of Word-finding (TWF-2; German, 2000). They were tested on 100 items at different stages of the intervention study (see above). Items were drawn from the following word sets: Funnell, Hughes and Woodcock (2006) and Druks and Masterson (2000).

Picture naming task description:

The materials were used in a confrontation naming task. They consist of 100 black and white line drawings of objects.

The picture naming task was programmed using the experimental software DMDX (Forster & Forster, 2003) running on a laptop computer with a 15.4-inch screen. Naming responses were scored contemporaneously and were recorded using an external microphone connected to the laptop. 

All 100 items were presented in a single session divided into four blocks of 25 items each. The child was asked to provide a single word for each picture. The tester moved to the next item as soon as the child named the picture. Four fixed randomized orders were rotated across children during testing. 
Each trial began with the presentation of a fixation cross in the centre of the screen for 500 msecs. Then the picture appeared and stayed on the screen for a maximum of 10000 msecs. Three items, not used in the main testing session, were presented for practice. Feedback on accuracy was given during the practice trials but not during the main task.
Please note these data should be viewed in conjunction with the study data from typically-developing children and children with word-finding difficulties uploaded separately by Professor Jackie Masterson.

Full details of the intervention study, including the design of the research therapy, can be found in the following paper: http://dx.doi.org/10.1080/02643294.2014.1003204
Project website: : https://sites.google.com/site/wordfinding/