Determine whether the following statement is true or false.
It is possible that a stratifies sample of college students based on level of schooling will still be biased with regard to other characteristics such as gender.
True. A stratified sample based on level of schooling does not guarantee that the sample will be representative or unbiased in terms of other characteristics such as gender. Bias can still exist if there are disproportionate numbers of one gender within each level of schooling. For example, if the distribution of male and female students varies significantly across different levels of schooling (e.g., higher proportion of males in graduate programs), then the stratified sample may still be biased in terms of gender representation.
