Statistics

Test 1 Question 6. A group of patients are looked at with regard to a risk factor for heart disease. They are divided into those who have the risk factor and those who do not. These groups are then followed for a number of years to see who does and who does not develop heart disease. This is an example of a:

Test 1 Question 15. A chronic schizophrenic has been taking medication for 20 years. Every morning he goes to his pill bottle and takes the pills his doctor prescribes. This is an example of:

Test 1 Question 105. A type I error occurs when:

Test 1 Question 106. The process by which a patient in a clinical trial has an equal likelihood of being in a control group versus an experimental group is:

Test 1 Question 108. The probability of finding a true difference between two samples is:

Test 1 Question 109. The number of people who have a disorder at a specified point in time is:

Test 2 Question 41. Which one of the following is a method of making a prediction to compare the value of one variable to another?

Test 2 Question 87. A study in which a group comes from a well-defined population and is followed over a long period of time is a:

Test 3 Question 23. The assumption that there is no significant difference between two random samples of a population is called:

Test 3 Question 61. Which one of the following is false regarding the Pearson correlation coefficient?

Test 3 Question 97. A method of obtaining a prediction for the value of one variable in relation to another variable is called:

Test 3 Question 99. A measurement of the direction and strength of the relationship between two variables is called:

Test 3 Question 116. If you divide the incidence of a disease in those with risk factors by the incidence of the same disease in those without risk factors, the result is called the:

Test 3 Question 137. A group that does not receive treatment and is the standard for comparison is called the:

Test 4 Question 5. A doctor in a certain hospital makes a diagnosis for a particular patient. That diagnosis is considered reliable if:

Test 4 Question 37. A set of statistical procedures designed to compare two or more groups of observations and determine whether the differences are due to chance or experimental difference is called:

Test 5 Question 23. You are studying two variables, a binary predictor variable and a continuous outcome variable. You want to know if the relationship between those two variables is due to chance alone. Which of the following tests would you use?

Test 5 Question 90. A clinical test that detects 96% of patients with a certain disease, but also produces many false positives in patients without the disease, is deemed to have:

Test 5 Question 122. A general consensus among experienced clinicians and researchers is known as:

Test 6 Question 105. Which of the following disorders is not more common in males?

Test 6 Question 113. Which of the following statistical measures would be used to quantify the degree of agreement between two raters in a study?