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WHY STUDY STATISTICS IN PSYCHOLOGY?

Many students of psychology are shocked when they discover that the study of statistics is necessary. “Maths!!! I just want to help people!” is the usual cry of derision. is there a purpose in having potential psychologists, who do not intend to do research, suffer through the complexities and esoteric boredom of stats?

Simply put: Yes.

The statistical arts are basically a numerical summary of a set of recorded data. A sexual abuse therapist may see over 150 children in a year. Of these, 50 have anger management issues, 14 are promiscuous, 75 are diagnosed as experiencing ADHD, 10 are withdrawn, 5 appear to have no negative psycho-social behaviours, affect or cognitions, whilst another 5 have already perpetrated against other children.

The therapist would have more difficulty developing an awareness of the differences and similarities across the children if statistics were not available to summarise observations.

Statistics will also inform the therapist to associations and relationships between the characteristics and experiences of the children. For example, between diagnoses of ADHD, sexual abuse, age, gender and likelihood to experience abuse again.

The statistical information helps the children because the therapist grows in knowledge by reflecting on patterns of behaviour and psychological well being.  The therapist is now able to formulate hypotheses about interventions to aid a specific set of inappropriate behaviours, affect or cognitions. Using statistics the hypotheses can be tested, leading the therapist to better methods of intervention & evaluation; the child is lead to a better quality of life.

Communication of the therapist’s observations and research conclusions to other sexual abuse workers extends understanding and creates better interventions and supports for abused children.

Five Uses of Statistics in Daily Life

1) Business uses statistics to make predictions, increase their profits.


2) We all use stats, everytime we make an informed guess about


the world around us. E.g. (those clouds are dark, it's probably going


to rain today) -Not very sophisticated, but that's where it starts.


3) When you read a poll in the newspaper, a confidence interval is 


often given. It tells you how confident you can be in the poll.


4) Public safety uses stats -to make sure theres a very small chance


something might go wrong


5) Probability can be fun and challenging (See Monty Carlo Paradox)

Statistics and Economics

Statistics play an important role in economics. Economics largely depends upon statistics. National income accounts are multipurpose indicators for the economists and administrators. Statistical methods are used for preparation of these accounts. In economics research statistical methods are used for collecting and analysis the data and testing hypothesis. The relationship between supply and demands is studies by statistical methods, the imports and exports, the inflation rate, the per capita income are the problems which require good knowledge of statistics.

Statistics in Natural and Social Sciences

Statistics plays a vital role in almost all the natural and social sciences. Statistical methods are commonly used for analyzing the experiments results, testing their significance in Biology, Physics, Chemistry, Mathematics, Meteorology, Research chambers of commerce, Sociology, Business, Public Administration, Communication and Information Technology etc…

Bank and Statistics

Statistics play an important role in banking. A Bank make use of statistics for a number of purposes. The banks work on the principle that all the people who deposit their money withthe banks do not withdraw it at the same time. The bank earns profits out of these deposits by lending to others on interest. The bankers use statistical approaches based on probability to estimate the numbers of depositors and their claims for a certain day.