ISA Keywords 0.0 / 5 ? ScienceISAGCSEAQA Created by: HeatherCreated on: 19-11-13 19:50 Prediction What you think will happen in an experiment, 1 of 26 Valid The results and conclusions would be this if all the variables are correctly controlled, 2 of 26 Fair Test This is where only the independant variable is changed and the other variables are controlled, 3 of 26 Hypothesis A scientific statement that explains certain facts and observations, 4 of 26 Interval This is the diffence between the values of the independant variable, 5 of 26 Data Information you collect from an experiment, 6 of 26 Datum One piece of information 7 of 26 Systematic Error An error that repeats itself in every experiement- usually to do with the method, 8 of 26 Resolution The smallest measurement on a piece of equipment, 9 of 26 Repeatable If the same person can get the same results when repeating the experiment, 10 of 26 Categoric Variable A variable that can be described with a label or category, 11 of 26 Control Variable Variables that remain constant and are controlled, 12 of 26 Independant Variable The variable that you are changing to causes a change in another thing 13 of 26 Continuous Variable A variable that can have any numerical variable 14 of 26 Dependant Variable The variable that is changed as a result of the change of the independant variable, 15 of 26 Uncertainty The spread of results around the true value, 16 of 26 Measurement Error The difference between the real value and the measured value, 17 of 26 Anomaly A result thay does not fit the pattern, 18 of 26 Random Error This error causes measurements to be spread around the true value so should not be included in the mean, 19 of 26 Zero Error When a piece of equipment should be reading zero, but doesnt, 20 of 26 Accuracy How close the reading is to the true value 21 of 26 Precision Determined by the resolution of the equipement - mm is more recise then mm 22 of 26 Calibration When we make sure the apparutus is reading the correct value 23 of 26 True Value The real value of an experiement 24 of 26 Reproducible If another person can get the same result, it means your experiment is reproducible, 25 of 26 Range The maximum and minimum values for the independant and dependant variables. 26 of 26
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