This study with 56 students (mean age 15 years) with mental retardation and 53 nonretarded students (matched for mental age) found that students with mental retardation were more likely to rely on all kinds of external cues (task-relevant, incidental, or misleading) in problem solving, especially when the preceding task had been difficult.…

Comparison of problem preferences of six meaning-oriented and five number-oriented junior high school students found that the successful meaning-oriented students preferred solving multistep and nonroutine problems, whereas the less successful number-oriented students preferred simple routine problems. However, in graded situations all students…

Studied structures and relationships in one-step additive and multiplicative problems solved by 450 students in grades 2, 3, and 4. Results show that the facility ratio of the problems differs by structure, situation, and the sequence of data. The ability to solve one-step problems increases with age, but relative problem difficulty is grade…

This research investigated developmental shifts in the character of children's tool using activity in the domain of scale drawing. Fifty-five children from three grade levels (grades 3, 5, and 7) were individually interviewed as they participated in both enlarging and reducing a one-dimensional object, the letter "F," to a scale of four.…

To learn more about the specific nature of the teaching and learning problems involved, researchers conducted a clinical study of 20 high school students enrolled a BASIC course. Investigators presented each student with a sequence of eight programming problems, ranging from easy to difficult. They asked questions to track student thinking and…

The possibility of developing a learning theory that is designed to insure its relevance to educational problems is discussed. It is suggested that the constitutive problem for an educational psychology of learning is how one learns things that are difficult to learn. Behaviorist learning theories fail almost entirely to explain why anything is…

This study explores the extent to which scores on four separate complex reasoning solution processes could predict performance on difficult problems. Definitions are provided for the four processes--intra-sentence processing, inter-sentence processing, ordering, and collecting--and previous work done in the field is outlined. The procedures used…

This paper describes an approach to task analysis which seeks to identify potential sources of difficulty in the self-discovery of improved procedures by students who have been taught simpler procedures. The approach considers novices' procedures in terms of the changes needed to produce an expert procedure; the knowledge required to make those…

Investigated the roles of successful task performance and achievement instructions on attitudes regarding the guided-design approach to instruction. Results revealed that students erroneously informed that they had done well on the task stated more positive attitudes. However, the achievement instructions did not have a statistically significant…

Tested the hypothesis that increasing problem complexity elicits strategies of greater efficiency from older adults. Responses of older and younger adults were compared in a version of "Twenty Questions." No evidence was found that older adults seek more efficient strategies. Both groups maintained the same strategies. (Author/JAC)

Investigates the hypothesis that strategy development might occur within or beyond the period of formal operations, but that this development might be discernible only beyond the second order of analogical relations. Adolescent strategy development in the solution of third-order analogies resembled in pattern the preadolescent development found in…

Three problem-solving strategies--working backward from the unknown, forward from the given, and mixed--were applied to interrelated algebra equations. The mixed strategy was most popular and most efficient with grouped variables. Memory load or information-processing load differences among the strategies were evident. (CP)

Researchers have suggested two models of risk preference to account for subjects' preference for tasks of moderate difficulty. The affective model proposes that pride of success and shame of failure are responsible for the observed preference. The cognitive model suggests preference for tasks of moderate difficulty because they are the most…

This study investigates the influence of changes in the wording of simple addition and subtraction problems without affecting their semantic structure on the level of difficulty of those problems for first and second graders and on the nature of their errors. The objective is to contribute to a better understanding of the process of constructing a…

Research supported by Grant No. HD-01762-01 from the National Institute of Child Health and Human Development.