Several methods for testing mediation hypotheses with 2-level nested data have been proposed by researchers using a multilevel modeling (MLM) paradigm. However, these MLM approaches do not accommodate mediation pathways with Level-2 outcomes and may produce conflated estimates of between- and within-level components of indirect effects. Moreover,…

Dropping out of school has been associated with a student's ethnicity, socioeconomic status, challenging behaviours and low academic achievement. This paper describes research conducted with 1050 students aged 12-15, in three North Queensland urban high schools to investigate issues related to Indigenous and non-Indigenous students at risk of…

We look at three common research scenarios, one in the behavioral domain (i.e., disruptive behaviors) one in the cognitive domain (i.e., academic achievement), and one in the affective domain (i.e., anxiety and stress) for which school psychologists are asked to address important questions related to change. We list measurement and statistical…

A growing controversy surrounds the strict interpretation of statistical significance tests in social research. Statistical significance tests fail in particular to provide estimates for the stability of research results. Methods that do provide such estimates are known as invariance or cross-validation procedures. Invariance analysis is largely…

This study used multiple regression analysis to relate computer user satisfaction to communication monitor (CM) variables. Results indicate the variables of user expectations, manufacturers, and vendors are most significant in affecting overall satisfaction, whereas number of systems represented and not using communication monitors have least…

This research investigates how individual differences in strategic abilities affect problem solving and, more particularly, the extent to which hypothesis-generating skills predict effective hypothesis testing. Additional questions concerned the effects of content and timing of instructional advice on children's problem-solving strategies, and…

The purpose of this research was to determine, through multiple regression analysis, the strength of the relationship of each of six predictor variables (undergraduate major, undergraduate grade-point average (GPA), graduate major, graduate GPA, Graduate Record Examinations (GRE) Quantitative score, and GRE Verbal score) to academic achievement…

Describes a study conducted with undergraduate psychology students to determine if the relationship between expectancy measured shortly before an examination and subsequent achievement can be accounted for by the possible common antecedents of previous achievement, past effort expenditure, and perceived ability. (MBR)

Reviews study of 30 graduate students that investigated the possible contribution of pictures to the recall and retention of information presented in written prose. The two variables considered were the durability of picture effects, and the effect on recall of information that was not pictured. (LRW)

Describes study of 42 first and second graders which was conducted to determine whether older siblings could enhance their comprehension of television programs. The hypotheses tested are discussed, research methodology using analysis of variance is explained, videotapes of sibling interaction are analyzed, and future research needs are suggested.…

Discussion of variables that affect successful completion of external degree programs focuses on a study that investigated the association between learning style and persistence among students from the University of Wisconsin System Extended Degree Programs. Literature on distance education is reviewed, and results of the study are analyzed. (35…

The purpose of this study was to examine the nature of the expectancy-performance relationship for each sex and to determine whether cross-sex comparisons are appropriate. Students' expectancies for academic performance and the relationship of the expectancies to actual grades were examined. Subjects were 331 students (168 women and 163 men)…

One of the important components of the elaboration theory (Reigeluth, 1979) is the synthesizer, which provides information to relate and integrate a set of concepts and which can appear in different formats. This study investigated the effectiveness of three formats of post-instruction synthesizer on student recall of definitions of concepts and…

Examines the importance of levels of questioning and types of feedback in designing courseware for computer-based education. Test results are analyzed for four groups of high school students who completed different versions of a computer-based science lesson, and recommendations for future research are given. (Author/LRW)

Describes a study designed to determine if college students' success in writing computer programs is related to level of cognitive development as described by Piaget, verbal ability, and mathematics reasoning. Regression analysis showed that level of cognitive development, when combined with verbal reasoning, is linearly predictive of programming…