Studying Development – research methods Flashcards
What are all humans are interested in?
- understanding behaviour (their own, their parents, children, family and friends)
- finding out why we find some tasks easy/ hard
- exploring why we feel for some people the way we do.
who said we are all ‘nature’s psychologists’?
Nicholas Humphrey (1984)
Why have an organised study of the science of psychology?
One reason is to help humans have greater insight, and maybe agreement, on contentious issues.
What is a cross-sectional study?
Investigator looks at several different age groups simultaneously
Example
• Look at language ability in 3 year olds and 4 year olds at the same point in time to see differences
Benefits
• Quick and convenient
• Appropriate if main interest is abilities or behaviours at certain ages
What is a longitudinal study?
Investigator follows certain individuals over a given time period, measuring change
Example
• Record language ability for a 3 yr old and a year later visit the same child to record again, then at 5 and 6 years old…
Benefits
• Preferable if the focus of interest is the process of change, and the relationship between earlier and later development
At 3…..and again … At 4!
Very powerful but has drawbacks
What is the subject attrition or loss of longitudinal studies?
• participants move away,
• lose contact,
• refuse
so cannot take part at next point of testing
How could this effect the generality of a study?
Time – consuming
• need to wait for the next time point and then compare
• may not have asked questions about what we want to know now
• conclusions may not be applicable to current times as society has changed
What TV series demonstrate longitudinal research?
Child of our Time (2000)
Who first studied development?
- Earliest contribution from famous biologist Charles Darwin in “A biographical sketch of an infant” (1877), based on observations of his own son
- At beginning of the twentieth century most of our understanding of psychological development was from anecdote and opinion
- Therefore not considered ‘scientific’
What happened in the 1920s/30s in terms of development?
USA founded Institutes
• These combined
• observations and
• experiments in development
• looking at normal, abnormal and adjustment of children
• Included Piaget, a very influential psychologist
What happened in 1940s/50s in terms of development?
- Observation – which often took place in naturalistic settings and relied on introspection of the psychologist – went out of favour
- Instead they used…
- Experiments in laboratory conditions – this provided rigour and enabled situations to be altered for different participants
What happened in 1970/80s in terms of development?
- Laboratory work was seen as “the science of the behaviour of children in strange situations with strange adults” (Bronfenbrenner, 1979)
- Led to research considering how the child’s developmental processes and the social context in which they exist are intertwined