A strength of the GST is that there is evidence to support schema:
Martin and Holverson asked children to recall pictures with a variety of professions
Found that children under 6 recalled more gender-consistent pictures (e.g. a male firefighter) compared to inconsistent pictures (e.g. a male nurse)
This suggests that Martin and Holverson were accurate in assuming that children's schema develop at around 6
Addition to research support
Martin and Holverson also found that when shown schema-inconsistent pictures (a boy playing with a doll), the children distorted the information and reported schema-consistent behaviour
This offers support to the role of distortion in the GST
Research support
A strength of the GST is that there is evidence to support ingroup and outgroup behaviour:
Bradbard et al. labelled gender-neutral items as either male or female
They found that the children took an interest in the items labelled as the 'ingroup' and were more likely to recall'ingroup' items the following week
Therefore, this study offers support to the theory of ingroups and outgroups in the GST
Selective attention
One limitation of the gender schema theory is that children have selective attention:
Children actively look for behaviour that fits their schema
If they see schema-inconsistent behaviour they will ignore or forget it