You are conducting a study of how effective a midnight basketball program is on reducing inner city juvenilecrime. you measure the number of crimes reported to the police before and after the program is instituted, andyou compare your findings to the crime rates in another city of similar size that does not have such a program. what is the experimental stimulus of your research?

Early 18th century british industries were generally small scale and relatively unsophisticated. most textile production, for example, was centred on small workshops or in the homes of spinners, weavers and dyers: a literal ‘cottage industry’ that involved thousands of individual manufacturers. such small-scale production was also a feature of most other industries, with different regions specialising in different products: metal production in the midlands, for example, and coal mining in the north-east.two illustrations of 18t