The study examined the family backgrounds, attentional patterns, and interpersonal styles of 20 Canadian learning disabled (LD students (10-22 years old). Using the Test for Attentional and Interpersonal Styles and a questionnaire, 94 family members, including the 20 Ss, were interviewed. Although no strong familial patterns of import were revealed, several patterns emerged, including the following: LD Ss showed definite attentional overload patterns; more mothers than fathers of LD Ss showed similar attentional overload, and more mothers also reported more family members with such problems; attentional overloads of hypoactive Ss were more pronounced than hyperactive Ss; a high incidence of allergies was found to exist in the Ss; and medication-responsive Ss were heterogeneous in terms of age, sex, and activity level. (Questionnaire and test instrument are appended.) (Author/CL)