RM Experimental research

10 flashcards · Other · by Daniel F.

  1. experimental research is used to

    discover causal relationships

  2. experimental control

    nothing except the independent variable is changing

  3. steps of experimenting

    Select relevant variables and determine treatment levels of IV(s) Control experimental environment blind (participant unaware of conducting an experiment) double blind (both researcher and participant does not know conditions) Choose design and assignment process pilot test

  4. Experiment Design steps

    how to choose independent variables and treatment levels Choose IV based on research question treatment levels: different conditions to which participants are assigned e.g. drug and placebo Within-subject design vs.between-subjects design Compare different condition (placebo and real drug) within each participant or between different participants Pre-and post-test design Post-test only control group design Pre-test-post-test control group design

  5. Draw conclusion from experiment by

    comparing treatment levels

  6. Types of experiments

    true experiment field experiment quasi experiment

  7. True experiment

    Full experimental control Experimental group vs. control group Groups are equal (randomization or matching Pros study something which in real life is impossible Cons evaluation apprehension: guinea pig effect Manipulation (and controlled setting) makes situation less realistic

  8. Field experiment

    experiment in natural settings random assignment of participants to conditions (one supermarket two jams ) Pros: more heterogeneous participants no guinea pig effect Cons less experimental control other factors can influence results

  9. Quasi experiments

    experiment in natural settings use existing groups (two supermarket two jams) Pros: more heterogeneous participants no guinea pig effect Cons no random assignment and no real manipulation far less experimental control

  10. Pre-and post test measurements

    checking that the manipulation occurred before the outcome