Effects of the number of individuals coacting while taking two standardized motor performance tests were examined. Increases in aptitude scores corresponding to increases in group size were predicted based upon the summation hypothesis of social facilitation theory. Results indicated a group size effect. (Author/BJG)

A rapid method for hierarchically clustering the n objects of a matrix which portrays the interrelation of every object to every other object, where n equals any number up to 1,000 and even larger, is developed and discussed. Results compare favorably with those from other excellent methods. (Author/BJG)

Q factor analysis is found appropriate for use in clinical or educational situations where available typologies or scales seem inadequate, where the psychological dynamics of learning or treatment are not well understood, or where it is desirable to avoid anticipating the precise direction and character of program impact. (Author/BJG)

Variance components from split-plot factorial design (SPF) were used to estimate reliability for schools and persons within schools. Reliability for persons within SPF and randomized block design (RB) schools were compared and reliability for SPF and RB design schools were compared. (Author/BJG)

Extended Lubin's discussion of ordinal and disordinal interactions by introducing the concept of dual-ordinal. This concept was considered important since a transformation cannot bring about additivity unless the interaction is dual-ordinal in nature. A method is presented for determining whether or not an interaction is dual-ordinal. (Author/BJG)

The Dunnett procedure for comparing several treatment means with a control is applied to the problem of comparing several treatment variances with the variance of a control. Appropriate critical values are specified and an example is provided. (Author)

Results showed the relation between an experiment with only positive estimations of emotional terms and one that included negative similarity estimations of emotional terms. Negative similarities were found to have been represented mainly as zero ratings when only a positive scale was available for the subjects to rate the words. (Author/BJG)

Compared two methods of identifying item hierarchies in the evaluation of attitude measures. Scalogram analysis revealed that items did not form a unidimensional and cumulative hierarchy. Ordering-theoretic analysis identified a branched, nonlinear hierarchy which had higher reproducibility and scalability than the linear hierarchy identified by…

Different forms of a vocabulary test were administered to college students. Results indicated that as the frequency of specific determiners increased, they formed increasingly strong but differential guessing response sets in high and low scoring groups; however, the magnitude of the effect was much stronger for position specific determiners.…

The survey was administered to high school seniors. Analysis supported 3 of the 4 hypothesized factors: Delay Avoidance (DA), Work Methods (WM), and Teacher Approval (TA). The Educational Acceptance (EA) factor was not supported. Implications for counseling are discussed. (Author/BJG)

An equation, introduced by Goodman and Kruskal for obtaining a reliability measure of one item was expanded. This formula determines inter-rater reliability for a series of items across many subjects. The statistic that results is easily interpreted and in many ways is analogous to the conventional reliability for quantitative data. (Author/BJG)

Measures of multivariate reliability were calculated for profiles of Wechsler Intelligence Scale for Children (WISC) subscales on three age groups. Profile dimensions based on reliability considerations were established and matched across age groups and with factor analytic dimensions. WISC was found to measure general ability and verbal and…

Investigated the extent to which intransitivity, as measured by the total circular triad (TCT) score in the method of paired comparisons, varies across different domains of content and across different groups of subjects. Three paired comparisons instruments were administered to high school and college students. (Author/BJG)

Although most scaling formats include an intermediate or neutral response category, little research has been devoted to the analysis of the meaning respondents attach to this category. Results obtained from ten different scales, across two types of item formats support the traditional method of scoring the ? answer.

A questionnaire containing items on personal history, reasons for section selection, and sources of information about the instructor was administered to undergraduate students. The time at which class was scheduled and teacher reputation were the primary reasons for section choice. Other variables, considered less important by students, also…