AQA A-Level Psychology: Research Methods YEAR 1 (A+ Graded)

What are the two types of validity? correct answers Internal and external What is validity? correct answers How true or genuine an observed effect or behaviour is. What doe internal validity mean? correct answers If the IV produces a change in the DV, if the test tests what it's supposed to, if it has or hasn't got mundane realism. What are the different types of external validity? correct answers Ecological (linking to real life), Population (linking to gender), Temporal (linking to time of study) Finish the sentence: Having good control means... correct answers A high internal validity, but a low external one. What are the rules for discussing validity? correct answers In relation to research ONLY Be specific to what validity it is Clearly explain why the study does or doesn't have that validity. What is reliability? correct answers Consistency of measurement, same data on more than one occasion. How does reliability relate to validity? correct answers More reliable, more likely to have good internal validity, controlled variables. If a test is unreliable, it can't be valid. What is an IV? correct answers What the researcher manipulates. (cause) What is a DV? correct answers What is measured. (effect) Why do variables need to be operationalised? correct answers To provide a clear, objective definition of the variables to be studied. Measuring and discussing the same thing. What are extraneous variables? correct answers They exist in all studies and can interfere with obtaining a clear understanding of relationships among study variables. Need to be controlled. Like PsV and SV, affect behaviour Finish the sentence: If an extraneous variable isn't controlled... correct answers It may alter the results and cause an effect in some way, it's then confounding. Identify IV and DV: Students who study with music get better GCSE results than those who study in silence. correct answers IV: Listening to music or not, while studying. DV: GCSE grade attained.