Fichas
Data and Other Experiment Terms
Fichas del conjunto (14)
- 1What is quantitative data?Data that expresses how much, how long or how many there are of something. Behaviour is measured in numbers/quantities.
- 2What is qualitative data?Data that expresses the "quality" of things in terms of detail. It can't be counted or quantified but can be turned into quantitative data through grouping things into categories. E.g: eye colour.
- 3What are the 3 measures of central tendency?Mean, mode, median.
- 4Name and define 2 measures of dispersion.Range - the largest value minus the smallest.
Standard deviation - calculates the average distance from the mean. It's more precise and takes all values into account. - 5What is nominal data? Give an example.The data are in separate categories e.g: eye colour, favourite subject, categorising good and bad spellers.
- 6What is ordinal data? Give an example.The data are ordered/ranked in some way e.g: spelling rank within the class, position in a race.
- 7What does representative mean?Psychologists use sampling techniques to choose people typical of the population as whole so they can generalise their results.
- 8What is attrition?The loss of participants from a study over time, making it likely to use a small or biased sample.
- 9What are cohort effects?One group of participants (cohort) may have unique characteristics because of time-specific experiences. E.g: being a kid in WW2.
- 10What is imposed etic?When a technique or theory is developed in one culture and then used to study behaviour in a different culture which has different values, norms and experiences.
- 11What is interval data? Give an example.The data are measured using units of equal intervals e.g: centimetres, seconds. Unlike ratio data, it has no true zero (e.g: temperature) meaning that whist you can add and subtract it makes no sense to multiply and divide.
- 12What are aims?What you want to achieve in your study.
- 13What is a hypothesis?The aim/idea you're testing.
- 14Name and define the 3 different types of hypothesis.Null - the IV will have no effect on the DV. This acts as a control for accuracy.
Non-directional - there is a difference between the IV and DV but it's not stated.
Directional - the IV will have a particular effect on the DV.
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- A Levels (Research Methods) Psychology Fichas sobre Data and Other Experiment Terms, creado por Hazel Meades el 08/04/2014.
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- Hazel Meades
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