extra things: distribution, histograms, psychology and the economy

what is a normal distribution and sketch a graph

the mean is the same as the mode and median

representative sample

what is a negatively skewed distribution and sketch a graph

if the mean is less than the median and mode

not a representative sample/ anomaly

what is a positively skewed distribution and sketch a graph

if the mean is more than the median and mode

not a representative sample/ anomaly

what is the difference between a bar chart and a histogram

bar chart: categorical, unrelated data

histogram: plot of continuous data- do not leave gaps between bars

how to chose which method of central tendency/ dispersion to use

Central tendancy

mean: sensitive- interval data

median and mode: less sensitive- ordinal/nominal data

dispersion

range: less sensitive- ordinal/nominal data

standard deviation: sensitive- interval data

economic implications of psychological research: mental health

treatments (drugs, CBT etc) →increase functioning → allow them to work → pay taxes → reduces economic burden (benefits)

links to:

• approaches

• schizophrenia

• forensics

• psychopathology

economic implications of psychological research: social influence

social change (laws/ policies)

• minority influence: research on things like smoking → reduces economic burden on healthcare

economic implications of psychological research: attachment

multiple attachments (schaffer and emmerson): childcare → mums can work (good), mat pay (bad)

IWM- good PIES development (the work/taxes cycle)

economic implications of psychological research: memory

EWT and cognitive interviews

• reduces costs involved during criminal justice system

• less time wasted/ cost wasting

• prison- cant commit other crimes- less money wasted on other crimes