ATTRITION BIAS. When data are collected over two or more. points in time, it is common for some partici-. pants to drop out of the study prematurely. The. attrition of the original sample can occur in lon-. gitudinal research as well as in experimental. designs that include pretest, posttest, and follow-.
Average Loan Officer salary: $72,723 per year. Data comes from 284 real salaries collected directly from employees and jobs on Indeed.
As of Jan 2018, the average pay for a Certified Nurse Assistant (CNA) in San Diego, CA is $13.01 /hr or $22,678 annually.