Mental Retardation and Developmental Disabilities Research Reviews

Quartiles

The set of journals have been ranked according to their SJR and divided into four equal groups, four quartiles. Q1 (green) comprises the quarter of the journals with the highest values, Q2 (yellow) the second highest values, Q3 (orange) the third highest values and Q4 (red) the lowest values.

Category	Year	Quartile
Genetics (clinical)	1999	Q3
Genetics (clinical)	2000	Q3
Genetics (clinical)	2001	Q3
Genetics (clinical)	2002	Q3
Genetics (clinical)	2003	Q2
Genetics (clinical)	2004	Q2
Genetics (clinical)	2005	Q2
Genetics (clinical)	2006	Q2
Genetics (clinical)	2007	Q2
Genetics (clinical)	2008	Q3
Genetics (clinical)	2009	Q2
Genetics (clinical)	2010	Q2
Neuropsychology and Physiological Psychology	1999	Q3
Neuropsychology and Physiological Psychology	2000	Q3
Neuropsychology and Physiological Psychology	2001	Q2
Neuropsychology and Physiological Psychology	2002	Q2
Neuropsychology and Physiological Psychology	2003	Q1
Neuropsychology and Physiological Psychology	2004	Q1
Neuropsychology and Physiological Psychology	2005	Q1
Neuropsychology and Physiological Psychology	2006	Q2
Neuropsychology and Physiological Psychology	2007	Q1
Neuropsychology and Physiological Psychology	2008	Q2
Neuropsychology and Physiological Psychology	2009	Q2
Neuropsychology and Physiological Psychology	2010	Q1
Pediatrics, Perinatology and Child Health	1999	Q2
Pediatrics, Perinatology and Child Health	2000	Q2
Pediatrics, Perinatology and Child Health	2001	Q1
Pediatrics, Perinatology and Child Health	2002	Q1
Pediatrics, Perinatology and Child Health	2003	Q1
Pediatrics, Perinatology and Child Health	2004	Q1
Pediatrics, Perinatology and Child Health	2005	Q1
Pediatrics, Perinatology and Child Health	2006	Q1
Pediatrics, Perinatology and Child Health	2007	Q1
Pediatrics, Perinatology and Child Health	2008	Q1
Pediatrics, Perinatology and Child Health	2009	Q1
Pediatrics, Perinatology and Child Health	2010	Q1

SJR

The SJR is a size-independent prestige indicator that ranks journals by their 'average prestige per article'. It is based on the idea that 'all citations are not created equal'. SJR is a measure of scientific influence of journals that accounts for both the number of citations received by a journal and the importance or prestige of the journals where such citations come from It measures the scientific influence of the average article in a journal, it expresses how central to the global scientific discussion an average article of the journal is.

Year	SJR
1999	0.440
2000	0.382
2001	0.598
2002	0.679
2003	1.396
2004	1.190
2005	1.573
2006	1.208
2007	1.487
2008	1.081
2009	1.357
2010	1.832

Total Documents

Evolution of the number of published documents. All types of documents are considered, including citable and non citable documents.

Year	Documents
1999	44
2000	39
2001	40
2002	41
2003	39
2004	47
2005	43
2006	41
2007	45
2008	0
2009	0
2010	0

Citations per document

This indicator counts the number of citations received by documents from a journal and divides them by the total number of documents published in that journal. The chart shows the evolution of the average number of times documents published in a journal in the past two, three and four years have been cited in the current year. The two years line is equivalent to journal impact factor ™ (Thomson Reuters) metric.

Cites per document	Year	Value
Cites / Doc. (4 years)	1999	0.824
Cites / Doc. (4 years)	2000	1.037
Cites / Doc. (4 years)	2001	1.497
Cites / Doc. (4 years)	2002	1.870
Cites / Doc. (4 years)	2003	3.073
Cites / Doc. (4 years)	2004	3.616
Cites / Doc. (4 years)	2005	4.305
Cites / Doc. (4 years)	2006	4.741
Cites / Doc. (4 years)	2007	4.188
Cites / Doc. (4 years)	2008	4.318
Cites / Doc. (4 years)	2009	4.295
Cites / Doc. (4 years)	2010	5.593
Cites / Doc. (3 years)	1999	0.824
Cites / Doc. (3 years)	2000	1.086
Cites / Doc. (3 years)	2001	1.541
Cites / Doc. (3 years)	2002	2.016
Cites / Doc. (3 years)	2003	3.642
Cites / Doc. (3 years)	2004	3.300
Cites / Doc. (3 years)	2005	4.449
Cites / Doc. (3 years)	2006	3.558
Cites / Doc. (3 years)	2007	4.405
Cites / Doc. (3 years)	2008	3.519
Cites / Doc. (3 years)	2009	4.186
Cites / Doc. (3 years)	2010	6.556
Cites / Doc. (2 years)	1999	0.762
Cites / Doc. (2 years)	2000	1.108
Cites / Doc. (2 years)	2001	1.602
Cites / Doc. (2 years)	2002	2.557
Cites / Doc. (2 years)	2003	3.444
Cites / Doc. (2 years)	2004	3.313
Cites / Doc. (2 years)	2005	2.837
Cites / Doc. (2 years)	2006	3.233
Cites / Doc. (2 years)	2007	2.976
Cites / Doc. (2 years)	2008	3.081
Cites / Doc. (2 years)	2009	4.200
Cites / Doc. (2 years)	2010	0.000

Total Cites

Self-Cites

Evolution of the total number of citations and journal's self-citations received by a journal's published documents during the three previous years.
Journal Self-citation is defined as the number of citation from a journal citing article to articles published by the same journal.

Cites	Year	Value
Self Cites	1999	0
Self Cites	2000	4
Self Cites	2001	6
Self Cites	2002	4
Self Cites	2003	3
Self Cites	2004	5
Self Cites	2005	24
Self Cites	2006	2
Self Cites	2007	14
Self Cites	2008	0
Self Cites	2009	0
Self Cites	2010	0
Total Cites	1999	98
Total Cites	2000	139
Total Cites	2001	188
Total Cites	2002	248
Total Cites	2003	437
Total Cites	2004	396
Total Cites	2005	565
Total Cites	2006	459
Total Cites	2007	577
Total Cites	2008	454
Total Cites	2009	360
Total Cites	2010	295

External Cites per Doc

Cites per Doc

Evolution of the number of total citation per document and external citation per document (i.e. journal self-citations removed) received by a journal's published documents during the three previous years. External citations are calculated by subtracting the number of self-citations from the total number of citations received by the journal’s documents.

Cites	Year	Value
External Cites per document	1999	0.824
External Cites per document	2000	1.055
External Cites per document	2001	1.492
External Cites per document	2002	1.984
External Cites per document	2003	3.617
External Cites per document	2004	3.258
External Cites per document	2005	4.260
External Cites per document	2006	3.543
External Cites per document	2007	4.298
External Cites per document	2008	3.519
External Cites per document	2009	4.186
External Cites per document	2010	6.556
Cites per document	1999	0.824
Cites per document	2000	1.086
Cites per document	2001	1.541
Cites per document	2002	2.016
Cites per document	2003	3.642
Cites per document	2004	3.300
Cites per document	2005	4.449
Cites per document	2006	3.558
Cites per document	2007	4.405
Cites per document	2008	3.519
Cites per document	2009	4.186
Cites per document	2010	6.556

% International Collaboration

International Collaboration accounts for the articles that have been produced by researchers from several countries. The chart shows the ratio of a journal's documents signed by researchers from more than one country; that is including more than one country address.

Year	International Collaboration
1999	4.55
2000	10.26
2001	10.00
2002	4.88
2003	2.56
2004	10.64
2005	6.98
2006	7.32
2007	2.22
2008	0
2009	0
2010	0

Citable documents

Non-citable documents

Not every article in a journal is considered primary research and therefore "citable", this chart shows the ratio of a journal's articles including substantial research (research articles, conference papers and reviews) in three year windows vs. those documents other than research articles, reviews and conference papers.

Documents	Year	Value
Non-citable documents	1999	0
Non-citable documents	2000	0
Non-citable documents	2001	0
Non-citable documents	2002	1
Non-citable documents	2003	2
Non-citable documents	2004	4
Non-citable documents	2005	6
Non-citable documents	2006	8
Non-citable documents	2007	10
Non-citable documents	2008	10
Non-citable documents	2009	7
Non-citable documents	2010	3
Citable documents	1999	119
Citable documents	2000	128
Citable documents	2001	122
Citable documents	2002	122
Citable documents	2003	118
Citable documents	2004	116
Citable documents	2005	121
Citable documents	2006	121
Citable documents	2007	121
Citable documents	2008	119
Citable documents	2009	79
Citable documents	2010	42

Cited documents

Uncited documents

Ratio of a journal's items, grouped in three years windows, that have been cited at least once vs. those not cited during the following year.

Documents	Year	Value
Uncited documents	1999	64
Uncited documents	2000	62
Uncited documents	2001	47
Uncited documents	2002	38
Uncited documents	2003	26
Uncited documents	2004	32
Uncited documents	2005	27
Uncited documents	2006	30
Uncited documents	2007	21
Uncited documents	2008	17
Uncited documents	2009	15
Uncited documents	2010	2
Cited documents	1999	55
Cited documents	2000	66
Cited documents	2001	75
Cited documents	2002	85
Cited documents	2003	94
Cited documents	2004	88
Cited documents	2005	100
Cited documents	2006	99
Cited documents	2007	110
Cited documents	2008	112
Cited documents	2009	71
Cited documents	2010	43

% Female Authors

Evolution of the percentage of female authors.

Year	Female Percent
1999	33.01
2000	33.33
2001	28.05
2002	59.72
2003	43.66
2004	36.14
2005	64.71
2006	46.39
2007	58.33
2008	0.00
2009	0.00
2010	0.00

Documents cited by public policy (Overton)

Evolution of the number of documents cited by public policy documents according to Overton database.

Documents	Year	Value
Overton	1999	0
Overton	2000	0
Overton	2001	10
Overton	2002	18
Overton	2003	14
Overton	2004	16
Overton	2005	20
Overton	2006	16
Overton	2007	29
Overton	2008	0
Overton	2009	0
Overton	2010	0