d A researcher is interested in whether there are gender differences in the

D a researcher is interested in whether there are

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d) A researcher is interested in whether there are gender differences in the performance on a road map task. He compares the test scores of the male and female participants in the sample. (pg. 72) Nomothetic
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QUESTIONS AND ANSWERS 5 e) A local health and community psychologist is interested in learning about the relationships people have with their residential communities. She sends out a questionnaire to all people in the town asking them various questions about how they perceive life in their community. Case-study f) A lecturer wants to determine whether students are more likely to participate in class discussions when group members are the same sex. She randomly assigns students to either same-sex or mixed-sex groups and monitors the discussions for each group. Control experiment 2. In an experimental study on the effects of alcohol on memory performance: a) What variable is the dependent variable (DV)? Memory performance b) What variable is the independent variable (IV)? Effects of alcohol 3. You want to see if there is a difference in the rate of water evaporation if the water is coloured. Red, green and blue food colouring is added to three vials of water and the millimetres of water in the vial is measured after 12 hours. a) What is the theoretical IV?
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QUESTIONS AND ANSWERS 6 Water colour b) How is the IV manipulated or operationalised? The IV can be manipulated by using different food colourings. c) What is the theoretical DV? Rate of evaporation d) How is the DV measured or operationalised? The DV can be measured by considering the rates of evaporation when different food colourings are used. 4. What are the (a) advantages and (b) disadvantages of experimental research? Advantages: The results can be checked and verifies The best method for drawing causal conclusions Better results are always achieved Disadvantages Can produce artificial results Results may be difficult to replicate The sample may not be representative
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QUESTIONS AND ANSWERS 7 Part 3 1. Prepare responses to the following questions about naturalistic observation. a) What is naturalistic observation? According to Bernstein et al (2013), naturalistic observation is a type of research method that is used by psychologists and other social scientists. It involves observing study participants in their natural environment without interfering with them in anyway.
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