A survey was conducted using a mailed questionnaire which asked about personal habits of the subjects. The subjects were assured that all information would be kept confidential. In addition the respondents were told not to do anything that would reveal their identity in order to maintain the anonymity of their responses. However, each questionnaire had a hidden code placed on it so that the researcher could follow up to reduce the nonresponse rate of the survey and thus increase the reliability of the survey results. What best describes the ethics of this survey

What conclusion can be drawn from the information in the chart? a) africa's total number of hiv/aids cases makes up close to 20% of the world's total aids cases. b) poverty and lack of education are the only factors that have pushed the african aids rate to 6.1%. eliminate c) a major challenge facing african governments is finding a way to effectively combat the aids epidemic. d) north american aids rates are lower than the worldwide rate because of extensive government intervention and spending.

Dr. redbull conducts a study to determine whether her new energy drink children perform better on spelling tests. she randomly assigns children to one of two groups: group 1 receives her energy drink and group 2 receives water. she then gives both groups a spelling test and compares the results. which of the following is true about this study? a. group 1 is the dependent variable and group 2 is the independent variable. b. this is a correlational study. c. group 2 is the experimental group. d. the independent variable is the type of drink the children receive.

When recursive formula can be used to determine the total amount of money earned in any year based on the amount earned in the previous years?