The AB Design can be used to quickly assess the effects of an experimental variable. Its main disadvantage its inability to distinguish the experimental effect from possible confounds that might occur coincident with the change of condition.
ceÂ·liÂ·ac disÂ·ease. A disease occurring in children and adults characterized by sensitivity to gluten, with chronic inflammation and atrophy of the mucosa of the upper small intestine; manifestations include diarrhea, malabsorption, steatorrhea, and nutritional and vitamin deficiencies.
Gluten Allergy Overview. A gluten allergy is the body's inability to digest or break down the gluten protein found in wheat and certain other grains. Gluten intolerance (also known as a gluten sensitivity) can range from a mild sensitivity to gluten to full-blown celiac disease.According to the National Institute of Diabetes and Digestive and Kidney Diseases, about one out of every 133 Americans has celiac disease.luten Allergy Overview. A gluten allergy is the body's inability to digest or break down the gluten protein found in wheat and certain other grains. Gluten intolerance (also known as a gluten sensitivity) can range from a mild sensitivity to gluten to full-blown celiac disease.