Suppose that a student conducts a study in which the manipulated independent variable is level of white noise (60 decibels versus 65 decibels). Ten participants are assigned to each level of noise; these participants vary widely in age, hearing acuity, and study habits. The outcome variable is performance on a verbal learning task (how many words on a list of 25 words does each participant remember). The t test obtained is not statistically significant. What advice would you give to this student about ways to redesign this study that might improve the chances of detecting an effect of noise on verbal learning recall?
Answer to relevant QuestionsIn Table 5.4 are some of the data obtained in a small experiment run by one of my research methods classes to evaluate the possible effects of food on mood. This was done as a between subjects study; each participant was ...Aronson & Mills (1959) did an experiment to see whether people's liking for a group is influenced by the severity of initiation. They reasoned that when people willingly undergo a severe initiation in order to become a ...Suppose that Kim is a participant in a study that compares several coaching methods to see how they affect math SAT scores. The grand mean of math SAT scores for all participants in the study is 550. The group that Kim ...A review from Chapter 5 and 6: what other analyses could you do with the variables in the SPSS data set love.sav (variables described in Table 7.1)? Give examples of pairs of variables for which you could do t tests or one ...The data in the table below were collected in a famous social psychological field experiment. The researchers examined a common source of frustration for drivers: a car stopped at a traffic light that fails to move when the ...
Post your question