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Sélection des participants : échantillonnage aléatoire et stratifié

  • Notes d'étude
  • Révisions du sujet
    Zivanai G.
    ZW
    Zivanai G.

    well

    Peter Awuni A.
    GH
    Peter Awuni A.

    Which of the above is best for a psychological research?

    Odongo M.
    UG
    Odongo M.

    Psychology -> Participant selection: random and stratified sampling Participant selection: random and stratified sampling Participant selection involves the way in which potential subjects are chosen to participate in psychological research. Random sampling This involves the selection of subjects in such a way, that each has an equal opportunity to be chosen as a participant in the experiment. A number of methods can be chosen such as: - picking names out of a hat - choosing every third person on an alphabetical list If the sample is large enough, random sampling usually yields a fairly representative result. Stratified sampling In some experiments, the sample needs to be chosen to represent the general population on a certain characteristic, e.g. gender or age. Therefore, the researcher makes sure that the proportion of people in the sample with the particular characteristic is the same as the proportion of people in the general population with that characteristic. When subjects within each stratum are selected in a random way, it is called a stratified random sample. This method prevents biases in the sample and enables the researcher to generalise the findings to the wider population.

    Dominic M.
    KE
    Dominic M.

    Both methods are approved but i take stratified for the better.

    Enemchukwu E.
    NG
    Enemchukwu E.

    informative

    Penelope C.
    GB
    Penelope C.

    Stratified is memorable by thinking strategy

    Linda T S.
    US
    Linda T S.

    complete

    Heather F.
    US
    Heather F.

    Random and stratified are two acknowledge d methods of sampling

    Marietta B.
    US
    Marietta B.

    Random Sampling , ensures that subject have the opportunity to be chosen Stratified sampling, represents general population on certain characteristic. prevents bias.

    Nora S.
    US
    Nora S.

    Psychologists look for explanations for human behaviour; they reach conclusions through research processes which attempt to explain or even predict said behaviour

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