Results: The WJEC is responsible for A-levels

Plaid AM Cynog Dafis urged Ms Davidson to clarify the issue in the assembly chamber on Tuesday.

But business manager Andrew Davies refused calls for a full debate.

Mr Davies said that because the WJEC was a private company, the assembly could not intervene.

However, he added that he would take more advice from colleagues on the matter.

In a statement before the assembly met, Mr Dafis said the WJEC's position was an important matter for AMs.

"Plaid Cymru has known for a long time about the problems in the WJEC and the Assembly must now intervene to secure its future", he said.

"Any move now to bring the WJEC under the aegis of the WLGA would compound the present problems facing the organisation and endanger the body's role as a service provider for education in Wales."