The biological differences between males and females
Chromosomes, hormones and anatomy
Chromosomes influence hormonal differences as well as anatomy
e.g. reproductive organs, body shape, hair growth
Sex is innate - nature
Gender
Physiological and cultural differences between males and females
Attitudes, behaviours, social roles
Heavily influenced by social norms and expectations
Partly environmentally determined
Due to nurture
Open to change
Gender dysphoria
The biologically prescribed sex does not reflect the individual's gender identity
Sex-role stereotypes
Preconceived ideas about what is accepted for men and women in a given society
Reinforced by parents, peers, the media and institutions
May lead to sexist assumptions being formed
Research into sex-role stereotypes
Smith and Lloyd (1978)
Showed that mothers treat boy and girl babies differently, in line with stereotypes
32 mothers videoed playing with a baby for 10 minutes
6 months old, dressed and named as a boy or girl
When playing with a boy, the mother encouraged more motor activity and gender-appropriate toys
Responded to the perceived sex of the infant in line with gender stereotypes
Androgyny
A balance of masculine and feminine characteristics, behaviours and attitudes
Androgyny and Bem
Bem developed a method for measuring androgyny
Suggested high androgyny is associated with psychological wellbeing
Better equipped to adapt to a range of situations
Those who score highly on one scale have a more limited range of skills
Research into androgyny
Wesiner and Wilson-Mitchell (1990)
Suggests environmental factors are the cause of physical androgyny
Compared children raised in families that put an emphasis on traditional gender roles vs families that actively downplay gender roles
Androgyny was higher in children encouraged to ignore traditional gender roles
Bem's sex-role inventory (BSRI)
Self-report questionnaire
1974
How BSRI was created:
Asked 50 male and 50 female students to rate personality traits as being masculine or feminine
Most highly rated "masculine", "feminine" and "neutral" were used to form the questionnaire
BSRI method:
Measured the mix of masculine or feminine traits present in an individual
Scale presents 20 "masculine", 20 "feminine" and 20 "neutral" traits
Respondents rate themselves 1-7 on each trait
Scores are classified along masculinity-femininity and androgynous-undifferentiated
Evaluation of Bem's sex-role inventory
Association between androgyny and psychological wellbeing
Bem placed emphasis on the idea that androgynous individuals are more psychologically healthy
They are better adapted to a wide range of situations
However, this assumption has been challenged
Some researchers argue that those who display a larger number of masculine traits are better adjusted
They are more valued in Western society
Suggests that Bem's research may have not taken adequate account of the social and cultural context in which it was developed
Evaluation of Bem's sex-role inventory
Use of questionnaires
Relies on an individual's own understanding of their personality and behaviour that they may not have
Gender is a hypothetical construct which is much more open to interpretation
Furthermore, the questionnaire's scoring system is subjective
People's interpretation of the scale may differ
Suggests the BSRI suffers from methodological flaws
May mean it is not measuring what it intended to measure
Reduces validity
Role of hormones and chromosomes
Atypical sex chromosome patterns
Chromosomes made from DNA
Genes are sections of DNA that determine characteristics
23 pairs - the 23ʳᵈ determines biological sex
All egg cells have X
Half of the sperm cells have X, half have Y
Y chromosome carries a gene called the sex determining region Y (SRY)
Causes testes to develop in an XY chromosome
These produces androgens: male sex hormones which cause the embryo to become male
The role of hormones
Chemical substance circulated in the bloodstream that regulates activity of cells/organs
Chromosomes initially determine sex, but gender development s through the influence of hormones
In the womb, hormones act upon the brain and cause the development of reproductive organs (primary sexual characteristic)
At puberty, a burst of hormonal activity triggers the development of secondary sexual characteristics
Males and females produce many of the same hormones, just in different concentrations
Testosterone
Controls development of male sex organs
Linked to aggression
Nanne de van Poll et al. (1988)
Female rats injected with testosterone become more physically and sexually aggressive
Congenital Adrenal Hypothesis (CAH)
Rare genetic disorder than causes high prenatal levels of testosterone
Affects males and females
More easily identified in girls who may have more ambiguous genitals
Berenbaum and Bailey (2003)
Females with CAH are "tomboys", show high levels of aggression and a preference for male toys
Oestrogen
As well as physical changes, oestrogen causes some women to experience heightened emotion and irritability during menstrual activity (PMT - when diagnosed, PMS)
Craddock
Released on probation and given progesterone after shoplifting and murder - used PMS as a defence
Oxytocin
Causes contraction of the uterus
Stimulates lactation
Women produce larger quantities than men, particularly in birth
Reduces cortisol and facilitates bonding
Referred to as the "love hormone"
Evidence suggests both sexes produce oxytocin in roughly equal amounts during amorous activities
Evaluation of the role of chromosomes and hormones
Bruce
Botched circumcision at 6 months - most of his penis was burnt off
Dr Money believed biological sex was less important than environmental influences
He encouraged Bruce's parents to raise him as a girl, Brenda
Brenda suffered from severe psychological issues and returned to living as a man, David
This outcome suggests biological influences (chromosomes, XY) are more important than socialisation (raising him as a girl)
Evaluation of the role of chromosomes and hormones
Bruce - counterpoint
However, Tricker et al. (1996) conducted a double blind study where 43 males were injected with testosterone or a placebo over 10 weeks
Researchers found no difference in behaviour between the 2 groups
Shows that whilst biological influences are important, there is a limit to how much it influences behaviour
Evaluation of the role of chromosomes and hormones
Objection to PMS
Many have questioned the effects of oestrogen on a woman's mood and object to the medical category of PMS as it stereotypes female experience and emotion
Feminist critiques claim that it is a social construct
They have pointed to the medicalisation of women's emotions by explaining them in biological terms
Klinefelter's syndrome
Biologically male
Extra X chromosome
Affects 1/500-1000
Physical characteristics
Reduced body hair
Gynecomastia
Rounding of body contours
Long limbs
Underdeveloped genitals
Co-ordination problems
Psychological characteristics
Poor language, reading, memory and problem-solving abilities
Passive and shy
Do not respond well to stressful situations
Turner's syndrome
Biologically female
Absence of an X chromosome
Affects 1/5000
Physical characteristics
No menstrual cycle
Ovaries fail to develop
Do not develop breasts
Webbed neck
Small hips
Appears pre-pubescent
Psychological characteristics
Higher than average reading ability
Socially immature
Poor spatial awareness, memory and maths skills
Difficulty fitting in
Evaluation of atypical chromosome patterns
Contribute to understanding of nature vs nurture
By comparing people with atypical and typical chromosome patterns, we can see behavioural and psychological differences
It can be logically inferred that the differences have a biological basis - a result of the abnormal chromosome structure
Suggests innate influences have a powerful effect on psychology and behaviour
Evaluation of atypical chromosome patterns
Differences associated with Klinefelter's and Turner's syndrome is not causal
May be that environmental and social influences are more responsible for the behavioural differences
e.g. social immaturity in Turner's syndrome may be the fact that they are treated immaturely by the people around them
Wrong to assume the psychological and behavioural characteristics are due to nature
Evaluation of atypical chromosome patterns
Earlier and more accurate diagnosis
Australian study of 87 individuals with Klinefelter's syndrome showed that those identified and treated from a young age had significant benefit compared to those diagnosed in adulthood
Suggests increased awareness of these conditions may have practical application
Cognitive approach
Kohlberg's theory
Cognitive-developmental theory of gender (1966)
Idea that a child's understanding of gender becomes more sophisticated with age
Understanding runs parallel to intellectual development as the child matures biologically
3 stages:
Gender identity
Gender stability
Gender constancy
Gender identity
2-3 years
Aged 2 - children correctly identify themselves as girl or boy
Aged 3 - children identify others as male and female
Unaware that sex is permanent
Easily fooled by appearances
Gender stability
4 years
Realise they will always stay the same gender
Cannot apply this logic to others' gender
Still confused by external changes in appearance
Gender constancy
6-7 years
Recognise that gender is consistent across time and situations
Understanding applied to others' gender
No longer fooled by external appearances
Evaluation of Kohlberg's theory
Evidence supports the stages
Slaby & Frey (1975)
Children presented with split-screen images of males and females performing the same tasks
Younger children spent roughly the same time watching each sex
However, children in the gender constancy stage spent longer looking at the model the same sex as them
Suggests Kohlberg's theory is correct in the assumption that children who have acquired gender constancy seek gender appropriate models
Evaluation of Kohlberg's theory
Evidence supports the stages - counterpoint
Methodological issues
Kohlberg's theory was developed using interviews with children as young as 2-3 years old
Questions were tailored towards the particular age groups
However, Kohlberg did not acknowledge that young children who lack vocabulary may not be able to express their understanding
They may have had complex ideas but do not possess the verbal ability to articulate them
Therefore, what they express does not truly represent their understanding
Evaluation of Kohlberg's theory
Comparison with the biological approach
Argument that changes in understanding of gender are maturational gains support from the biological approach which sees gender as genetically determined
Kohlberg's view is in line with the biological approach , suggesting that gender development is genetically governed
The stages are influenced heavily by changes in a developing child's brain and increased cognitive and intellectual capacity with age
Also supported by Munroe et al. (1984) who found cultural evidence of the stages and suggests they may be universal
Evaluation of Kohlberg's theory
Comparison with the biological approach - additional
Imitation of role models
Gender constancy stage is significant in the fact that children of this age begin to seek gender appropriate models to identify with and imitate
Stated that once a child has fully developed and internalised the concept of gender at the constancy stage, they embark upon an active search for evidence to confirm the concept
Links to social learning theory as external influences and the role of socialisation
Gender schema theory
Martin and Halverson
Cognitive-developmental theory
Argues children's understanding of gender increases with age
Shares Kohlberg's view: children develop their own understanding rather than observing/imitating role models (SLT)
Different to Kohlberg:
Acquiring gender-related behaviour happens before gender constancy - basic gender identity is all that is needed for the child to take an interest in gender-appropriate behaviours
Suggests schemas affect later behaviour: memory and attention
Gender schema after gender identity
Schema - mental constructs that develop via experience and are used by our cognitive system to organise knowledge around particular topics
Gender schema - generalised representation of everything we know about gender
Martin and Halverson stated that once gender is established around 2-3 years, they will begin to search the environment for information that encourages schemas
Gender schema in determining behaviour
Schema expands to include a wide range of behaviour and personality traits
Young children - schemas are likely to be formed around stereotypes
These provide a framework that directs experience as well as the child's understanding of themselves
6 years old
Ingroups
The group with which a person identifies
e.g. being a girl, you identify with the "girl" ingroup
Once the child has identified with an ingroup, they positively evaluate it to enhance their self-esteem
This evaluation motivates a child to be like their own group
They also actively seek out information about what their own group does (ingroup schemas)
According to GST, before gender constancy, children focus on ingroup schemas
It is not until ~8 that they develop elaborate schemas for both genders
Outgroups
The group with which a person does not identify
e.g. being a girl, you do not identify with the "boy" outgroup
Once identified, they negatively evaluate the outgroup
They avoid the behaviour of their outgroup
Gender schema theory
Supporting evidence
Martin and Halverson
Children under 6 years old were more likely to remember photos of gender-consistent behaviour than gender-inconsistent behaviour when tested a week later
They changed the gender of the inconsistent behaviour
Supports the idea that memory may be distorted to fit existing schemas
Supports GST which predicts that children under 6 would do this
Kohlberg predicted this would only happen when children are older
Earlier gender identity
Gender identity probably develops earlier than GST suggested
Longitudinal study
82 children
Onset of gender identity
Twice-weekly reports from mothers on their children's language age 9-21 months
Videotaped analysis of the children labelling themselves boy or girl
Occurred on average at 19 months, as soon as they begin to communicate
Suggests children have a gender identity before this
Suggests Martin & Halverson underestimated children's ability to use gender labels
May not be appropriate to argue specific ages for GST
Ages are averages
Social learning theory
The role that social context plays in gender development
All behaviour is learned from observing others
Implies no psychological differences between males and females at birth
Gender differences occur because of the way society treats children