Hypothesis, A possible explanation for an observed - testable and falsifiable, Prediction, Focuses on the relationship between two variables - if ... then ..., Independent variable, The factor that is changed in the experiment, Dependent variable, The factor that depends on the independent variable, often measured, Controlled variable, Factors kept constant in order to ensure that the experiment is a fair test, Qualitative data, Data that we observe with our senses, such as colour changes, smells and tastes, Quantitative data, Data that involves measurement and always numerical values, Primary data, Data that is generated when carrying out the experiment, investigation, survey or questionnaire, Secondary data, Data that are collected by someone other than the experimenter, Objective, A way at looking at something that is not influenced by personal feelings or opinions, Subjective, A way of looking at something that is based on personal feelings or opinions, Statistical uncertainty, The experimenters inability to take the same measurement in exactly the same way each time, Systematic uncertainty, Caused by measuring instruments that are incorrectly calibrated or a defect in measuring equipment, Precision, How close the measurements are to eachother, Accuracy, How close a measurement is to its true value.

Hypothesising and experimenting

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