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Planning Psychological Research

Methodologies: Experiments, Participant observations and Non-participant observations

  • 3 things to know
  • Component 2

Overview

Recall questions on Experiments, Participant observations and Non-participant observations.

What you need to know

Answer each one before you reveal it.

Your recallNot started
Evaluation

Give one strength and one weakness of the laboratory experiment.

Key term

Why is a quasi-experiment weaker evidence for cause and effect than a true experiment?

Evaluation

Give one strength and one weakness of participant observation.

Questions from this subtopic

Each one with the model answer underneath.

  1. 1

    What is a laboratory experiment?

    Model answer

    It is a study in which the researcher manipulates an independent variable and measures a dependent variable in a controlled setting they have arranged, with extraneous variables held constant.

  2. 2

    Give one strength and one weakness of the laboratory experiment.

    Model answer

    The tight control and standardised procedure allow cause and effect to be established and the study to be replicated, but the artificial setting and task may produce behaviour that does not reflect real life.

  3. 3

    What is a field experiment, and what is gained and lost by moving out of the laboratory?

    Model answer

    In a field experiment the independent variable is manipulated in the participants' own natural surroundings, which makes behaviour more genuine, but extraneous variables are far harder to control and the study is harder to replicate exactly.

  4. 4

    What is a quasi-experiment?

    Model answer

    It is a study in which the independent variable is a pre-existing characteristic of the participants, such as age, sex or having a particular diagnosis, which the researcher cannot manipulate.

  5. 5

    Why is a quasi-experiment weaker evidence for cause and effect than a true experiment?

    Model answer

    Participants cannot be randomly allocated to conditions because they already belong to their group, so differences between the people themselves may explain the results instead of the variable of interest.

  6. 6

    What is a participant observation?

    Model answer

    It is an observation in which the researcher joins the group being studied and takes part in its activities while recording behaviour.

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