Mathematics, 25.12.2020 23:50 genyjoannerubiera
Swedish researchers concluded that viewing and discussing art soothes the soul and helps relieve medical conditions such as high blood pressure and constipation. This conclusion was based on a study in which 10 elderly women gathered once a week to discuss different works of art. The study also included a control group of 10 elderly women who met once a week to discuss their hobbies and interests. At the end of 4 months, the art discussion group was found to have a more positive attitude, to have lower blood pressure, and to use fewer laxatives than the control group.(a) Why would it be important to determine if the researchers assigned the women participating in the study at random to one of the two groups?i) Assigning women at random ensures that the two groups are comparable. ii) Assigning women at random satisfies the conditions of a single-blind experiment. iii) Assigning women at random is not important for the study and can be neglected.(b) Explain why you think that the researchers included a control group in this study. i) A control group is absolutely unnecessary hereii) A control group allows the experiment to be conducted once more if the first attempt failed. iii) A control group is used to increase the size of the sampleiv) A control group provides a baseline for comparisons to determine treatment effects.
Answers: 2
Mathematics, 21.06.2019 17:30
The sum of two numbers is 12 and their difference is 18 what are the two numbers
Answers: 1
Mathematics, 21.06.2019 22:00
Which statements describe the solutions to the inequality x< -20 check all that apply. there are infinite solutions. each solution is negative. each solution is positive. the solutions are both positive and negative. the solutions contain only integer values. the solutions contain rational number values.
Answers: 1
Mathematics, 21.06.2019 23:00
Which geometric principle is used to justify the construction below?
Answers: 1
Swedish researchers concluded that viewing and discussing art soothes the soul and helps relieve med...
English, 04.04.2020 08:01
Mathematics, 04.04.2020 08:01
Mathematics, 04.04.2020 08:01
Mathematics, 04.04.2020 08:01
History, 04.04.2020 08:02
Mathematics, 04.04.2020 08:02