Helen Dawkins, founder of the UK Childminding Association (UKCMA), said childminders she had spoken to were insulted by the report, because it doesn't give a fair representation of how well-qualified they need to be and what the job entails.
The CSJ's report - Transforming Childcare, Changing Lives: making sure that work pays - written by Deven Ghelani, calls for an overhaul of childcare to tackle the extortionate costs of daycare that threaten the Government's attempts to make work pay.
According to childminders, there are many fundamental inaccuracies within the report, including figures on how much childminders charge, which the report claims is on average £4.19 per hour.The report says that the figure on childminders' fees is taken from the Department for Education Childcare and Early Years Survey of Parents in 2010.
The report also says that the ratio is 1:8 for childminders on the compulsory childcare register caring for five- to eight-year-olds, whereas, according to the revised EYFS, a childminder may care for no more than six children under eight at any one time.
As well as this, the report fails to mention a change in ratios for childminders on the voluntary part of the childcare register, which are dependent on a number of things, including if a childminder cares for children under eight and if local planning permission has been sought.
Another inaccuracy in the report is the suggestion that childminders are required to register through an agency.
Nursery World's Childminder of the Year Ann Ross said, 'I find it quite worrying with all the talk of childminder agencies. This seems to go back to the idea of deregulation and forming an agency to manage childminders.'
Childminders have hit out against comments in the CSJ report that childminding suits people who want a flexible source of income, and becoming a childminder is a 'relatively simple and inexpensive process.'
They also criticise the report's recommendation that job centres discuss the option of becoming a childminder with parents on income support.
Ms Dawkins of the UKCMA said, 'Childminders have to spend a lot of money setting up their business. There are no grants or funding available.
'To become a childminder you have to have completed training. The report implies that childminding isn't a profession and that childminders sit at home and play with a few toys. That might have been the case in the 1950s, but now childminders are highly trained and valued members of the community.'
Concerns have also been raised by the sector that the report's acknowledgments only mention one childminder, who they refer to as a 'young childminder.'
However, the Centre for Social Justice told Nursery World that they had consulted with a number of childminders, an online company described as an agency and local authority childminding services, as well as taking information from the National Childminding Association's website on becoming a childminder.
The NCMA was asked for a comment but was unable to meet our deadline.
Commenting on Nursery World's Linkedin group about the report, Denise Burke, director of United for All Ages, said, 'The author clearly hasn't spoken to the sector. If he had he would know that those working with our most precious commodity - children - don't want to compromise on quality.'
A spokesperson for the Centre for Social Justice said, 'The Centre for Social Justice believes that childcare is critical to the wellbeing of children. Childminders do an incredibly important job in both raising young children and in supporting parental employment.
'Our report focuses on the subject of childcare, rather than childminders specifically. The recommendations are aimed at making childcare more affordable in order to support parents into work, without compromising on the quality of care for young people.
'The table - An overview of regulations for childcare providers, by age of child (p11) - which is repeated on p29, indicates the lowest allowable childcare ratios (which are for registered early years provision). While the information in the report is accurate in this context, we do see how the table could be misinterpreted and we have made a clarification in the report to this effect.'