A diagrammatic approach to computer instruction for the naive user

There are inherent difficulties with text as an instructional format. This research presents the development of a diagrammatic representation that overcomes some of those difficulties. A simple “language” is presented that includes both procedural and model information. This approach is applied to the instruction of word processing/text-editing skills. An experimental methodology is presented and preliminary results are reported that suggest that the diagrammatic approach results in improvements in both the amount of word processing accomplished and the speed with which modifications are made.     

Unilateral brain lesions and MMPI performance: a preliminary study.

Samples of 15 Ss with right- and 20 Ss with left-hemisphere brain lesions secondary to war-related penetrating missile wounds were matched for age, education, and recency of injury and evaluated with the MMPI. Right-hemisphere lesioned Ss produced a composite profile with all scales within normal limits. In contrast, the composite profile of left-hemisphere lesioned Ss showed significant elevations on the Sc, D, and Hs clinical scales, suggesting increased psychopathological responses in such Ss. Although the general configurations of the composite MMPI profiles in the two samples were similar, significant differences in the elevation of both validity and clinical scales were obtained. The results tend to support previous findings of a depressive-catastrophic reaction in patients with lesions in the dominant hemisphere, while not supporting the euphoric-indifference response in nondominant-hemisphere lesioned Ss.     

The effects of instructional variables on young children's organization and free recall

The relationship between verbal instruction and children's free recall was examined. Sixty first-grade children (mean age 84 months) were trained to categorize pictures of common objects. Half were given organizational instructions emphasizing categorization, and half were given instructions emphasizing the individual objects. Similarly, half were given detailed verbal instructions and encouraged to listen, and half were taught using a question type format that encouraged participation. Immediately and after a 2- to 3-week delay, children who were shown an organizational strategy categorized the materials during study and attained higher recall scores than children who were shown a specific strategy. After the 2- to 3-week delay, children in the explanation groups out-performed children in the question-asking groups. The child's competence as measured by intelligence and performance in school did not contribute to amount recalled when subjects were given instructions emphasizing the general strategy. However, children of high competence benefited more from specific training by recalling more items than did children of low competence. These findings point to the importance of instructional variables in studying changes in children's processing capabilities.     

Adolescent pregnancy: contributing factors, consequences, treatment, and plausible solutions

Adolescence, although not always necessarily a period of extreme stress, is a time of profound physical changes which increase the adolescent's awareness of and interest in sexual behavior. This issue of sexuality, which begins in early adolescence, creates new challenges to personal and gender identity formation as the person matures. Sexual maturation is a three-fold process, requiring growth in understanding of oneself as a sexual being, in the ability to handle interpersonal relationships effectively, and in the capacity to plan behavior in view of future outcomes and present problems. A current concern is that today's adolescents, including early adolescents, may be making important life choices such as parenthood before they are developmentally ready for such roles (Chilman, 1980). This paper deals with pregnancy in adolescents and modes of responding to this phenomenon by those in the counseling and other helping professions.     

Bayesian inference for psychology. Part II: Example applications with JASP

Bayesian hypothesis testing presents an attractive alternative to p value hypothesis testing. Part I of this series outlined several advantages of Bayesian hypothesis testing, including the ability to quantify evidence and the ability to monitor and update this evidence as data come in, without the need to know the intention with which the data were collected. Despite these and other practical advantages, Bayesian hypothesis tests are still reported relatively rarely. An important impediment to the widespread adoption of Bayesian tests is arguably the lack of user-friendly software for the run-of-the-mill statistical problems that confront psychologists for the analysis of almost every experiment: the t-test, ANOVA, correlation, regression, and contingency tables. In Part II of this series we introduce JASP (http://www.jasp-stats.org), an open-source, cross-platform, user-friendly graphical software package that allows users to carry out Bayesian hypothesis tests for standard statistical problems. JASP is based in part on the Bayesian analyses implemented in Morey and Rouder’s BayesFactor package for R. Armed with JASP, the practical advantages of Bayesian hypothesis testing are only a mouse click away.     

Bayesian inference for psychology. Part I: Theoretical advantages and practical ramifications

Bayesian parameter estimation and Bayesian hypothesis testing present attractive alternatives to classical inference using confidence intervals and p values. In part I of this series we outline ten prominent advantages of the Bayesian approach. Many of these advantages translate to concrete opportunities for pragmatic researchers. For instance, Bayesian hypothesis testing allows researchers to quantify evidence and monitor its progression as data come in, without needing to know the intention with which the data were collected. We end by countering several objections to Bayesian hypothesis testing. Part II of this series discusses JASP, a free and open source software program that makes it easy to conduct Bayesian estimation and testing for a range of popular statistical scenarios (Wagenmakers et al. this issue).     

Latina Mothers’ Involvement in an HIV/STI and Substance Use Prevention Program for Adolescents: A Parallel Intervention Curriculum

As part of a larger HIV/STI/Substance Abuse Prevention intervention targeted to middle school students, we offered students’ parents an opportunity to participate in an adult education class. The same curricular materials were used for students enrolled in the intervention and for their parents. In the current study, mothers who had completed the adult education class participated in a focus group. The focus group explored what components of the intervention were perceived by mothers as particularly useful to them or to their child. Three core themes emerged from interpretive analyses of the focus group: (1) positive relationships with intervention staff and school personnel enticed students to participate in the intervention and facilitated parents’ involvement; (2) both students and parents felt respected and empowered by the intervention’s cornerstone values and curricular philosophy of cultural richness and pride in Hispanic/Latino heritage; and (3) mothers perceived their mastery of the course content—materially wholly dedicated to the health and wellness of their children—benefitted them in terms of both understanding the material and potentially allowing mothers to discuss health-oriented behavior with their young adolescent child.