Compléter 1.1 ExperimentVersion en ligne Basic elements of an experiment par Jorge Arizpe 1 observable hypotheses manipulates Quantitative experimental Control group depend Qualitative In order to demonstrate or reject , procedures called experiments are carried out . Variables are characteristics of an object or situation . variables do not take numerical values . For example , a measurement of this type regarding the temperature of an object is " Hot " or " Cold " . variables take values ? ? in numerical scales . For example , this object is at a temperature of 10 degrees Celsius . Independent variables are those whose value does not on another variable . For example , the taste of a cookie does not depend on its size . Dependent variables are those whose value depends on changing the value of another variable . For example , the taste of a cookie depends on the amount of sugar it contains . A " Variable " is one that is kept constant so it does not affect the experiment . During an experiment the researcher an independent variable and measures the result in a dependent variable . An group is one where the researcher has manipulated a variable to observe its impact . A control is one in which the researcher has left all the variables constant . It serves to make a comparison with the experimental group .
Créer jeu