Use a lead-in to introduce the list items and to indicate the meaning or purpose of the list (and punctuate it with a colon). When two items are alternatives, use a bulleted list (with or between). Do not use numbered lists for ORed items. For three or more alternatives, indicate that in the list lead-in. When a separate notice or explanatory paragraph follows a item, indent that separate material to the text of the parent list item. Indented material that elaborates on the parent list item.
double-blind procedure-an experimental procedure in which neither the subjects of the experiment nor the persons administering the experiment know the critical aspects of the experiment; a double-blind procedure is used to guard against both experimenter bias and placebo effects.ouble-blind procedure-an experimental procedure in which neither the subjects of the experiment nor the persons administering the experiment know the critical aspects of the experiment; a double-blind procedure is used to guard against both experimenter bias and placebo effects.
A major cause of double vision involving both eyes is misalignment of the eyes such that they cannot focus equally on an object. An eye muscle imbalance or refractive (eyeglass) problem can be responsible.This type of double vision can occur in young children whose eyes are misaligned from birth. major cause of double vision involving both eyes is misalignment of the eyes such that they cannot focus equally on an object. An eye muscle imbalance or refractive (eyeglass) problem can be responsible.