A study was conducted to explore the possibility of a music treatment effect on someone's ability to estimate time. One version of the study involved 115 university students. Each student was led into a dark room, and asked to press a button exactly three minutes after a signal was given. The time that actually passed from the signal to the pushing of the button was recorded in minutes. The university students were allocated to one of the two groups based on their weight. One group listened to jazz music during the study, while the other group did not. The researchers found a difference of 0.18 minutes between the mean of the times recorded for each group, with the group that listened to jazz music having the higher mean. The tail proportion from a randomisation test carried out with the data from the study was 115/1000. Use the information above to answer the following questions. In some cases, you will need to copy and paste words exactly as they appear above. Who were the participants in this study? student How many participants were used for this study? What was the treatment effect explored? treatment effect What were the units used to measure the response variable? Write the tail proportion as a percentage (rounded to one decimal place e.g. 12.5 or 25.0): 11.5 % Is the observed difference compatible with the null model? (enter yes or no) Is the observed difference unusual when compared to the 'just chance' distribution? (enter yes or no) Was randomisation used in the design of the study? (enter yes or no

A study was conducted to explore the possibility of a podcast treatment effect on someone's ability to estimate time. One version of the study involved 95 school students. Each student was led into a dark room, and asked to press a button exactly three minutes after a signal was given. The time that actually passed from the signal to the pushing of the button was recorded in seconds. The school students were allocated to a group randomly at the time that they signed up for the study. One group listened to a podcast during the study, while the other group did not. The researchers found a difference of 8.7 seconds between the mean of the times recorded for each group, with the group that listened to a podcast having the higher mean. The tail proportion from a randomisation test carried out with the data from the study was 109/1000. Is the observed difference unusual when compared to the 'just chance' distribution? (enter yes or no)

Psychology researchers at Cornell University claim that people’s internal clock–the sensation of time passing–is determined, at least in part, by how fast their heart is beating, with slower heart beats making a given length of time feel like it lasts longer. The psychologists published evidence from a recent study in which they measured undergraduate students’ exact heart rate using electrocardiograms. They played a sound out loud to the students and asked them to estimate how long the sound lasted. Which finding from the researchers’ study, if true, would most strongly support their claim? Students who estimated the shortest length of time for the sound also had the slowest heart rates.eliminateStudents’ heart rates only slowed down after the sound finished playing.eliminateStudents’ heart rates sped up when the sound was played. eliminate Students who had faster heart rates estimated that the sound lasted for a shorter period of time.

We wish to test the hypothesis that music improves learning. We compare the test scores of students who study with music and those who study in silence. Which of the following is an extraneous variable in this experiment?a.the presence or absence of musicb.the amount of time allowed for studyingc.silenced.the students test scores

We wish to test the hypothesis that music improves leaning. We compare test scores of students who study to music with those who study in silence. Which of the following is an extraneous variable in the experiment? A. the amount of time allowed for the studying B. Any of them is an extraneous variable C. the students test scores D. the presence or absence of the music

A researcher is interested in the pleasure that people obtain from listening to music whilst varying both the volume and the tempo (speed) of the music. 12 participants and randomly allocated into two groups. The different groups listen to the music at different volumes, i.e. soft and loud. The two groups of participants were given three pieces of classical music to listen to. Each piece of music was slow, medium, or fast. Participants were asked to rate how much they enjoyed the music on a 20-point scale where 20 points is highly enjoyable and 1 point is not at all enjoyable.In this study, there was a total of _____ conditions, and each participant took part in ______ condition(s)6; 26; 16; 3