You are conducting a study to see whether a new experimental medication will cause bald men to grow hair. You divide your patients into 2 groups. To one group you give the medication. To the other group, you give a placebo. In this study, the correct terms for the taking of the medication and the growth of hair are the following.

Related MCQs

• Which of the following types of sampling involves the researcher determining the appropriate sample sizes for the groups identified as important, and then taking convenience samples from those groups
• You are conducting a survey of the people of India to find out how popular football is among the Indians. You randomly choose people to call, and make 1,000 phone calls to people scattered across the country. In this study, what of the following statement is true
• A _____ refers to the group in your study whereas a ______ refers to a distinct group of people
• The rule of thumb for creating a frequency distribution is to divide the data into 5-15 classes. While larger numbers of classes allow for larger data sets, how do you know exactly how many classes to use
• If you have a digital weighing machine in your college that only reads in integers, is your weight a discrete variable
• The movie theater industry tracks ticket sales by age groups. A _______would provide an appropriate representation for the proportion of ticket sales attributed to each age group.
• Arrange the numbers in numerical order and see which is repeated most often. This describes which measure of central tendency
• Questionnaires can address events and characteristics taking place ______
• __________ variable is a factor that is not itself under study but affects the measurement of the study variables or the examination of their relationships.
• You have a correlation coefficient of 0.45 between two variables. How much variance would these two variables (to the nearest whole number) share, in percentage terms