In Part I of this paper certain epistemological considerations are reviewed as a source of suggestions on bases that might be used in classifying research, and the problem of validity of knowledge is discussed. In Part II the attempt to apply these bases and the attempts to answer the particular questions concerning clinical intervention are…

Two groups of 32 educable mentally retarded children (ages 7 to 14 years) were compared as to their arithmetic and classification performances attributable to the presence or absence of a 4 1/2 week exposure to classification tasks. The randomized block pretest-posttest design was used. The experimental group and the control group were matched on…

Research on the effectiveness of graphical displays for information acquisition and retention lacks a system for classifying graph information and generating test items to assess learning. The purpose of this study was to validate a system based on two types of information and three types of informational units. Results of an analysis of variance…

Through a comprehensive critical review of the empirical literature on health services utilization, there has been developed: (1) a classification of health services utilization, (2) a list of operational indices commonly used to measure each type of use. (3) a summary of the most powerful predictors of various types of use, and (4) a numbered…

The investigation sought to prove that retarded conceptualization behavior of deaf children can be improved by specific compensatory experiences in the manipulation of objects. Twenty-six deaf children of normal intelligence but deficient in language as determined by reading achievement level, ages 10-13 years, were randomly assigned to…

To test the predictive efficiency of the Holland Occupational Classification and the related hypotheses concerned with occupational achievement and stability of career from Holland's theory of careers, the classification was applied to a national sample of 973 male retrospective work histories. Analyses were performed by organizing and…

Reaction formation was studied by Sigmund Freud. This defense mechanism may be related to repression, substitution, reversal, and compensation (or over-compensation). Alfred Adler considered compensation a basic process in his individual psychology. Anna Freud discussed some defense mechanisms, and Bibring, Dwyer, Huntington, and Valenstein…

This is a methodological study that suggests a taxometric technique for objective classification of yeasts. It makes use of the minres method of factor analysis and groups strains of yeast according to their factor profiles. The similarities are judged in the higher-dimensional space determined by the factor analysis, but otherwise rely on the…

The brief critical examination focuses on existing special education practices in schools in which diagnosis is said to have become a suspicion confirming exercise. Labeling-categorization of children with either mild or severe degrees of exceptionality is singled out as a harmful practice. Ethical and legal issues then considered are the variance…

This study examined children's use of category information as a discrimination cue to avoid intrusions in recall and false alarms in recognition of items outside given categories. Forty-eight children in grades 1 and 4 were administered one of three conditions of a recognition task in which all study words were members of one of two familiar…

Three linguistically significant dimensions of differences between illocutionary acts are outlined which are said to form the basis of a taxonomy of the fundamental classes of illocutionary acts. Five basic kinds of illoctionary acts are defined. An assessment is made of Austin's classification. (Author/RM)

A method of typological analysis was applied to computer-generated 96-item questionnaire data for 100 cases, under a variety of conditions to analyze both the item-level and score-level. The results showed a considerable advantage of score-level approach in the number, size, and replicability of clusters recovered. (DEP)

Two experiments were conducted to test the hypothesis that category recall is related to the quantity conservation of mass, weight, and volume. The predicted association between conservation level and category recall was observed. (JMB)

Suggests lessons based on categorizing and several learning modalities to expand students' vocabulary. (MKM)