Developmental psychology focuses on how people change as they get older
This study examines how childrens sense of right and wrong change as they get older
Kohlberg aimed to investigate the development of moral reasoning in children in order to create a series of stages that could apply to all
kohlberg used longitudial studies as he re-interviewed the same ppts over 12 years
kohlberg used semi- structured interviews with 10 or more open ended questions
kohlberg used content analysis going through the qualitative data from the interview responses and identifiying themes
kohlbergs research has many features of a case study - longitudinal and multiple methodologies
kohlberg studied 75 american boys from the age of 10-16 and again between 22 and 28
he also studied people from :
great britain
canada
taiwan
mexico
turkey
by studying people from multiple countries, kohlberg could do cross cultural comparisons
to assess moral thinking, kohlberg created nine hypothetical moral dilemmas that presented a conflict between two moral issues
each child was asked to discuss three of these dilemmas prompted by 10 or more open ended questions
the responses were analysed and general themes were identified that were the basis of the stages of moral development
the children were assessed with a similar interview every 3 years and changes in their moral reasoning was recorded
kohlberg compared his findings with those from different cultures to see if there were cultural differences
kohlberg was able to identify differences in the moral reasoning to develop a stage model of moral development
he found moral development is broadly split into 3 stages:
preconventional
conventional
postconventional
each stage can be seperated into 2 sub stages giving 6 stages in total
kohlberg found that younger children thought at the preconventional stage and as they got older their reasons for moral decisions became less focused on themselves and more on relationships with others
the final level of development is related to moral principles
preconventional morality is based on its actions and direct consequences
conventional morality is an individual will assess morality by comparing it to societys views
postconventional morality is judged on abstract concepts that may conflict societys views
kohlberg concluded that these stages were universal and all people would pass through them
the only difference between people is the speed at which they progress through the stages
kohlberg argues that each step of the stages represent a better cognitive organisation and each stage builds on the one before
each stage becomes more equilibrated
a strength is this study has good population validity as ppts were used from 6 countries
a weakness is the sample in the usa were 75 males and not declared in the other countries which can be seen as unrepresentative especially to women
a strength is kolhberg used culturally specific dilemmas for the taiwan ppts to ensure their relevance and increase internal validity
a weakness is kolhberg used interviews which can lead to social desirablity that lowers the internal validity
a weakness is the study might lack ecological validity as they werent real life scenarios and consequences so answers may differ
a strength is kolhberg used the same nine moral dilemmas with the same set of questions to ensure internal reliability
a strength of conducting a longitudinal study with his usa ppts that ensured consistency
a weakness is ppts werent asked about the same dilemma at the same ages and taiwan had culturally specific dilemmas so there could be inconsistencies
used children under the age of 16 so he may have lacked valid consent
children under the age of 16 are seen as vunerable and it is unclear if there were any significant considerations over causing distress
risk of harm over the nature of the dilemmas
ppts may have felt stress or anxiety over giving correct answers
it can be claimed that the ethical costs are minimal and the importance of the findings improving moral development outweigh them