8 December 2011 Last updated at 08:37 ET

School banding shows best and worst performers in Wales

All secondary schools in Wales have been placed in a banding group of between one and five.

It's an assessment of a school's performance in the academic year 2010-11, with Band 1 being the best and Band 5 the worst.

The banding works by assessing school performance within four broad categories to produce an overall score:

The percentage of pupils achieving five A* to Cs at GCSE including English or Welsh and mathematics

The best eight GCSEs of pupils

The performance of pupils at GCSE in English or Welsh and mathematics

Attendance

Within each category, a school's score is modified to take into account the percentage of pupils eligible for free school meals.

Most of the categories also take into account a school's progress over time, to reward schools that are making improvements in performance.

Within the four broad categories, schools are scored on 12 separate measures in total.

School	Local authority	Band	% Achieving 5 A*-C GCSEs including English or Welsh + Maths (2010)
Blaenau Gwent
Ebbw Vale Comprehensive	Blaenau Gwent	Band 2	36
Brynmawr Foundation School	Blaenau Gwent	Band 3	49
Abertillery Comprehensive	Blaenau Gwent	Band 4	30
Glyncoed Comprehensive	Blaenau Gwent	Band 4	53
Tredegar Comprehensive School	Blaenau Gwent	Band 5	30
Bridgend
Porthcawl Comprehensive School	Bridgend	Band 1	58
Archbishop McGrath Catholic School	Bridgend	Band 2	52
Cynffig Comprehensive	Bridgend	Band 2	54
Maesteg Comprehensive School	Bridgend	Band 3	42
Ynysawdre Comprehensive School	Bridgend	Band 3	41
Brynteg School	Bridgend	Band 5	61
Bryntirion Comprehensive.	Bridgend	Band 5	50
Ogmore School	Bridgend	Band 5	29
Pencoed Comprehensive	Bridgend	Band 5	42
Ysgol Gyfun Gymraeg Llangynwyd	Bridgend	NA	NA
Caerphilly
Newbridge School	Caerphilly	Band 1	62
Oakdale Comprehensive	Caerphilly	Band 1	53
Ysgol Gyfun Cwm Rhymni	Caerphilly	Band 1	54
St Martin's School	Caerphilly	Band 2	49
Cwmcarn High School	Caerphilly	Band 3	61
Heolddu Comprehensive School	Caerphilly	Band 3	36
Pontllanfraith Comprehensive	Caerphilly	Band 3	47
Rhymney Comprehensive School,	Caerphilly	Band 3	35
Bedwas High School	Caerphilly	Band 4	34
Blackwood Comprehensive School	Caerphilly	Band 4	39
Lewis School Pengam	Caerphilly	Band 4	40
Lewis Girls' Comprehensive School	Caerphilly	Band 5	43
Risca Community Comprehensive	Caerphilly	Band 5	32
St Cenydd School	Caerphilly	Band 5	41
Cardiff
Mary Immaculate High School	Cardiff	Band 1	24
The Bishop of Llandaff	Cardiff	Band 1	75
Cardiff High School	Cardiff	Band 2	81
Fitzalan High School	Cardiff	Band 2	26
Llanishen	Cardiff	Band 2	60
Ysgol Gyfun Gymraeg Glantaf	Cardiff	Band 2	68
Ysgol Gyfun Gymraeg Plasmawr	Cardiff	Band 2	64
Cathays High School	Cardiff	Band 3	35
Corpus Christi Catholic High School	Cardiff	Band 3	63
Llanedeyrn High	Cardiff	Band 3	28
Radyr Comprehensive School	Cardiff	Band 3	80
St. Illtyd's Catholic High School	Cardiff	Band 3	40
Whitchurch High School	Cardiff	Band 3	51
Michaelston Community College	Cardiff	Band 4	22
Rumney High School	Cardiff	Band 4	33
St Teilo's C-in-W High School	Cardiff	Band 4	58
Cantonian High School	Cardiff	Band 5	26
Glyn Derw High School	Cardiff	Band 5	16
Llanrumney High School	Cardiff	Band 5	24
Willows High School	Cardiff	Band 5	20
Carmarthenshire
Ysgol Dyffryn Aman	Carmarthenshire	Band 1	46
Bryngwyn School	Carmarthenshire	Band 2	61
Ysgol Gyfun Gymraeg Bro Myrddin	Carmarthenshire	Band 2	73
Ysgol Tre-Gib	Carmarthenshire	Band 2	69
Dyffryn Taf	Carmarthenshire	Band 3	52
Glan-y-Mor School	Carmarthenshire	Band 3	37
Queen Elizabeth High School	Carmarthenshire	Band 3	53
St John Lloyd Catholic Comp School	Carmarthenshire	Band 3	54
Ysgol Gyfun Pantycelyn	Carmarthenshire	Band 3	54
Ysgol Gyfun Y Strade	Carmarthenshire	Band 3	69
Ysgol Y Gwendraeth	Carmarthenshire	Band 3	31
Coedcae Comprehensive School	Carmarthenshire	Band 4	34
Ysgol Gyfun Emlyn	Carmarthenshire	Band 4	45
Ysgol Gyfun Maes-Yr-Yrfa	Carmarthenshire	Band 4	75
Ceredigion
Ysgol Gyfun Llanbedr Pont Steffan	Ceredigion	Band 2	59
Ysgol Gyfun Penweddig	Ceredigion	Band 2	76
Penglais School	Ceredigion	Band 3	43
Ysgol Uwchradd Aberteifi	Ceredigion	Band 3	43
Ysgol Dyffryn Teifi	Ceredigion	Band 4	50
Ysgol Gyfun Aberaeron Comprehensive	Ceredigion	Band 4	43
Ysgol Uwchradd Tregaron	Ceredigion	Band 5	48
Conwy
Eirias High School	Conwy	Band 1	66
Ysgol Aberconwy	Conwy	Band 2	40
Ysgol Bryn Elian	Conwy	Band 2	56
Ysgol Dyffryn Conwy	Conwy	Band 2	46
Ysgol Y Creuddyn	Conwy	Band 2	66
Ysgol Emrys ap Iwan	Conwy	Band 3	44
Ysgol John Bright	Conwy	Band 4	50
Denbighshire
Ysgol Dinas Bran	Denbighshire	Band 1	46
Prestatyn High School	Denbighshire	Band 2	47
St Brigid's Secondary	Denbighshire	Band 2	75
Ysgol Brynhyfryd	Denbighshire	Band 2	58
Blessed Edward Jones High Sch	Denbighshire	Band 3	18
Ysgol Uwchradd Glan Clwyd	Denbighshire	Band 3	63
Denbigh High School	Denbighshire	Band 4	24
Rhyl High School	Denbighshire	Band 4	31
Flintshire
Castell Alun High School	Flintshire	Band 1	76
Flint High School	Flintshire	Band 2	53
Hawarden High School	Flintshire	Band 2	72
John Summers High School	Flintshire	Band 2	30
Maes Garmon	Flintshire	Band 2	65
Argoed School	Flintshire	Band 3	77
Connah's Quay High School,	Flintshire	Band 3	65
Elfed High School	Flintshire	Band 3	63
St. David's High School	Flintshire	Band 3	59
Alun School	Flintshire	Band 4	51
Holywell High School	Flintshire	Band 4	45
St. Richard Gwyn Catholic High School	Flintshire	Band 4	63
Gwynedd
Ysgol Brynrefail	Gwynedd	Band 1	45
Ysgol Tryfan	Gwynedd	Band 1	57
Ysgol Botwnnog	Gwynedd	Band 2	71
Ysgol Dyffryn Ogwen Bethesda	Gwynedd	Band 2	36
Ysgol Glan y Mor	Gwynedd	Band 2	69
Ysgol Y Gader	Gwynedd	Band 2	52
Ysgol Y Moelwyn	Gwynedd	Band 2	53
Ysgol Dyffryn Nantlle	Gwynedd	Band 3	47
Ysgol Eifionydd	Gwynedd	Band 3	55
Ysgol Uwchradd Tywyn	Gwynedd	Band 3	58
Ysgol Ardudwy	Gwynedd	Band 4	56
Ysgol Friars	Gwynedd	Band 4	54
Ysgol Y Berwyn	Gwynedd	Band 4	57
Ysgol Syr Hugh Owen	Gwynedd	Band 5	41
Isle of Anglesey
Ysgol Gyfun Llangefni	Isle of Anglesey	Band 1	56
Ysgol David Hughes	Isle of Anglesey	Band 3	61
Ysgol Syr Thomas Jones	Isle of Anglesey	Band 3	43
Ysgol Uwchradd Bodedern	Isle of Anglesey	Band 5	49
Ysgol Uwchradd Caergybi	Isle of Anglesey	Band 5	28
Merthyr Tydfil
Cyfarthfa High School	Merthyr Tydfil	Band 2	44
Pen-y-Dre High School	Merthyr Tydfil	Band 2	29
Bishop Hedley High School	Merthyr Tydfil	Band 4	34
Afon Taf High School	Merthyr Tydfil	Band 5	31
Monmouthshire
Chepstow Comprehensive School	Monmouthshire	Band 3	51
King Henry VIII Comprehensive	Monmouthshire	Band 3	55
Monmouth Comprehensive School	Monmouthshire	Band 3	54
Caldicot School	Monmouthshire	Band 5	48
Neath Port Talbot
Cefn Saeson Comprehensive School	Neath Port Talbot	Band 1	58
Cwmtawe Community School	Neath Port Talbot	Band 1	51
Dyffryn School	Neath Port Talbot	Band 1	51
Ysgol Gyfun Ystalyfera	Neath Port Talbot	Band 1	59
Cwrt Sart Community Comprehensive School	Neath Port Talbot	Band 2	39
Dwr Y Felin Comprehensive School	Neath Port Talbot	Band 2	53
Llangatwg Community School	Neath Port Talbot	Band 2	58
Sandfields Comprehensive School	Neath Port Talbot	Band 2	30
Cymer Afan Comprehensive School	Neath Port Talbot	Band 3	26
St Joseph's RC School and 6th Form Centre	Neath Port Talbot	Band 3	61
Glan Afan Comprehensive School	Neath Port Talbot	Band 4	53
Newport
St. Joseph's R.C. High School	Newport	Band 1	58
Caerleon Comprehensive School	Newport	Band 2	77
Bassaleg School	Newport	Band 3	72
Duffryn High School	Newport	Band 3	35
Hartridge Comprehensive School	Newport	Band 3	32
Lliswerry High School	Newport	Band 4	30
Newport High School	Newport	Band 4	28
St Julian's Comprehensive School	Newport	Band 4	44
Pembrokeshire
Ysgol Y Preseli	Pembrokeshire	Band 1	64
Sir Thomas Picton School	Pembrokeshire	Band 3	51
Ysgol Dewi Sant	Pembrokeshire	Band 3	51
Milford Haven School	Pembrokeshire	Band 4	37
Pembroke School	Pembrokeshire	Band 4	38
Tasker-Milward V.C. School	Pembrokeshire	Band 4	41
Ysgol Bro Gwaun	Pembrokeshire	Band 4	44
Ysgol Greenhill School	Pembrokeshire	Band 4	47
Powys
Builth Wells High School	Powys	Band 2	54
Llandrindod High School	Powys	Band 2	63
Llanfyllin High School	Powys	Band 2	69
Newtown High School	Powys	Band 2	48
Ysgol Uwchradd Caereinion High School	Powys	Band 2	64
Brecon High School	Powys	Band 3	56
Crickhowell High School	Powys	Band 3	68
Llanidloes High School	Powys	Band 3	73
Welshpool High School	Powys	Band 3	60
Gwernyfed High School	Powys	Band 4	54
Ysgol Bro Ddyfi	Powys	Band 4	60
John Beddoes School	Powys	Band 5	54
Ysgol Maesydderwen	Powys	Band 5	44
Rhondda Cynon Taf
Aberdare Girls' School	Rhondda Cynon Taf	Band 1	38
Treorchy Comprehensive School	Rhondda Cynon Taf	Band 1	59
Cardinal Newman R.C.	Rhondda Cynon Taf	Band 2	43
Mountain Ash Comprehensive School	Rhondda Cynon Taf	Band 2	36
Y Pant Comprehensive	Rhondda Cynon Taf	Band 2	66
Bryncelynnog Comprehensive School	Rhondda Cynon Taf	Band 3	52
St.John Baptist High School	Rhondda Cynon Taf	Band 3	69
Aberdare High School	Rhondda Cynon Taf	Band 4	32
Blaengwawr Comprehensive	Rhondda Cynon Taf	Band 4	29
Ferndale Community School	Rhondda Cynon Taf	Band 4	22
Hawthorn High School	Rhondda Cynon Taf	Band 4	38
Porth County Community	Rhondda Cynon Taf	Band 4	33
Tonypandy Community College	Rhondda Cynon Taf	Band 4	38
Ysgol Gyfun Cymer Rhondda	Rhondda Cynon Taf	Band 4	30
Ysgol Gyfun Llanhari	Rhondda Cynon Taf	Band 4	50
Ysgol Gyfun Rhydywaun	Rhondda Cynon Taf	Band 4	50
The Pontypridd High School	Rhondda Cynon Taf	Band 5	43
Tonyrefail School	Rhondda Cynon Taf	Band 5	33
Ysgol Gyfun Garth Olwg	Rhondda Cynon Taf	Band 5	57
Swansea
Bishop Gore School	Swansea	Band 1	51
Bishop Vaughan School	Swansea	Band 1	46
Bishopston Comprehensive	Swansea	Band 1	83
Cefn Hengoed	Swansea	Band 1	36
Ysgol Gyfun Gwyr	Swansea	Band 1	74
Olchfa School	Swansea	Band 2	74
Birchgrove	Swansea	Band 3	39
Dylan Thomas Community School	Swansea	Band 3	16
Penyrheol Comprehensive School	Swansea	Band 3	55
Pontarddulais Comprehensive School	Swansea	Band 3	60
Ysgol Gyfun Gymraeg Bryn Tawe	Swansea	Band 3	66
Gowerton Comprehensive School	Swansea	Band 4	50
Daniel James Community School	Swansea	Band 5	19
Morriston Comprehensive	Swansea	Band 5	58
Pentrehafod School	Swansea	Band 5	32
The Vale of Glamorgan
Ysgol Gyfun Bro Morgannwg	The Vale of Glamorgan	Band 1	73
Bryn Hafren Comprehensive School	The Vale of Glamorgan	Band 2	42
Cowbridge Comprehensive School	The Vale of Glamorgan	Band 2	81
Stanwell School	The Vale of Glamorgan	Band 2	71
St Cyres School	The Vale of Glamorgan	Band 3	53
St Richard Gwyn Catholic High School	The Vale of Glamorgan	Band 3	55
Barry Comprehensive School	The Vale of Glamorgan	Band 4	39
Llantwit Major School	The Vale of Glamorgan	Band 4	57
Torfaen
Ysgol Gyfun Gwynllyw	Torfaen	Band 3	64
Abersychan Comprehensive	Torfaen	Band 4	35
Croesyceiliog School	Torfaen	Band 4	55
Fairwater High School	Torfaen	Band 4	33
Llantarnam School	Torfaen	Band 4	35
St. Albans R.C. High School	Torfaen	Band 4	60
West Monmouth School	Torfaen	Band 4	34
Wrexham
St Joseph's Catholic and Anglican High	Wrexham	Band 1	62
Ysgol Rhiwabon	Wrexham	Band 1	38
Darland High School	Wrexham	Band 2	64
The Maelor School	Wrexham	Band 2	58
Ysgol Morgan Llwyd	Wrexham	Band 2	57
Ysgol Y Grango	Wrexham	Band 3	46
Rhosnesni High School	Wrexham	Band 5	44
Ysgol Bryn Alyn	Wrexham	Band 5	47
Ysgol Clywedog	Wrexham	Band 5	39