Being a foster mother - Joyce Robertson 1971

Retarded women - Skeels and Dye 1939

Children with tuberculosis - Bowlby 1956

Revisiting maternal deprivation hypothesis - Rutter 1981

Isle of Wight - Rutter 1976

Longitudinal study of ex institutional children - Hodges and Tizard 1989

Thoughts on Hodges and Tizard's studies - Clarke and Clarke 1979

Romanian orphans - Rutter 1998

Ex institutional women - Quinton 1985

One primary attachment - Schaffer and Emerson 1964

Czech twins - Koluchova 1976

The Ganda tribe - Ainsworth 1967

Following group of Romanian orphans - Rutter 2007

The Efe pygmies - Tronick 1992

Genie - Curtiss 1977

The Czech twins and Genie - Rymer 1993

40 adults adopted late in childhood - Triseliotis 1984

Reactive attachment disorder - Parker and Forrest 1993

The Kibbutzim - Fox 1977

John Bowlby 1953

Young boy not wanted by mother - Flanagan 1996

Depression in children in hospital - Spitz and Wolf 1946

Jones 1987

44 juvenile thieves - Bowlby 1944

German infants - Grossman and Grossman 1991

Caribbean cultures - Thomas 1998

Beneficial several attachments - Parke 1981

Meta-Analysis - Van Ijzendoorn and Kroonenberg - 1988

On Ijzendoorn and Kroonenberg's meta-analysis - Bee 1999

Minnesota longitudinal study - Sroufe 1999

Group of insecurely attached women - McCarthy 1999

The love quiz - Hazan and Shaver 1987

Strange situation study in Germany - Wartner 1994

Differences in classification using strange situation at different ages - Melhuish 1993

Infants behave differently depending on who with - Lamb 1977

Ainsworth and Bell 1970

A further group of children - Main and Cassidy 1988

Multiple caregiver paradox - Van Ijzendoorn 1992

What are secure attachments result of? - Ainsworth and Bell 1970

Responsive mothers and infants - Isabella 1989

Caregiver sensitivity hypothesis - Ainsworth 1974

Temperament hypothesis - Kagan 1982

Behavioural instability - Belsky and Rovine 1987

Maurer and Maurer 1989

Four characteristics of attachment - Maccoby 1980

Strange situation on Japanese infants - Takahashi 1990

Inclusion of mental state - Dollard and Miller 1950

Monkeys - Harlow and Harlow 1962

Inclusion of mental state - Dollard and Miller 1950

Four young monkeys - Harlow and Harlow 1962

Primary attachment in infants - Schaffer and Emerson 1964

John Bowlby 1969

Goslings imprinting - Konrad Lorenz 1952