Previous research suggests that preschoolers struggle with understanding abstract relations and with "reasoning by analogy." Four experiments find, in contrast, that 3- and 4-year-olds (N = 168) are surprisingly adept at relational and analogical reasoning within a causal context. In earlier studies preschoolers routinely favored images…

This research asks whether analogical processing ability is present in human infants, using the simplest and most basic relation--the "same-different" relation. Experiment 1 (N = 26) tested whether 7- and 9-month-olds spontaneously detect and generalize these relations from a single example, as previous research has suggested. The…

The labels used to describe patterns and relations can influence children's relational reasoning. In this study, 62 preschoolers (M[subscript age] = 4.4 years) solved and described eight pattern abstraction problems (i.e., recreated the relation in a model pattern using novel materials). Some children were exposed to concrete labels (e.g.,…

The potency of Pascual-Leone's M construct was demonstrated by experimental production of decalages on combinatorial reasoning tasks. Logical and perceptual task characteristics remained constant while the number of variables was varied so that processing demands, relative to processing capacities, were the same for subjects at each of three age…

Children aged 1 1/2 and 2 1/2 years observed events consisting of the removal of crucial support blocks from simple block structures. The child's anticipation ability was measured by the degree of surprise observed on certain trick trials in which concealed magnets prevented the expected collapse. (JMB)

Three paper-and-pencil formal operations tests were administered to groups of eighth graders and adults. These measures provided scores that indicated each subject's level of reasoning for three second-order operations: combinations, proportionality, and propositional logic. (JMB)

Investigates inferential behavior in five- and six-year-old children who made inferences about the spatial locations of models of animals and people in three experiments. Two levels of inference were found. Inferences of most five year olds were consistent with information given; Inferences of most six year olds were logically necessary ones.…

Reports three experiments based on the hypothesis that qualitative changes in verbal reasoning emerge, not from the conclusions children draw, but from what they accept as conclusive evidence. Results show a gradual development across 7-13 age range in ability to distinguish logically certain from only suggested or probabilistic conclusions.…

This study investigated the development of the concept of a critical search area by means of an action sequence in which a cartoon character loses his toy while walking through his house. The results showed that it is not until ages 7 or 8 that children readily make the inference that the critical area is the only plausible place to search for the…

This study investigated the use of covariation as a principle of causal analysis in children 3-4, 6-7, and 9-11 years of age. The results indicated that children as young as 3 years were capable of using covariation information in their attributions of simple physical effects. (Author/CS)

Children's ability to infer consequences from sentences automatically was assessed in two cued recall experiments. Seven- and eight-year-old children and adults served as subjects. (JMB)

Children, aged 4-8 were given 2-term relational problems to test the hypothesis that only older children can process sentences as propositions and realize their logical implications. Results indicated even the youngest children could perform the task. (ST)

The development of children's comprehension of cause and effect relationships was studied in 68 kindergarten, first grade, and second grade children. (BRT)

The aims of this study were (1) to test the dyadic superiority hypothesis by comparing dyadic performance on a logical reasoning task with the performance of children working alone, and (2) to determine whether the incorrect child's compliance with the correct child was a major factor in the dyadic production of correct answers. (Author/DB)

Children in grades 1, 3, and 5 and college students were given a variety of judgment tasks contrasting the comparison of quantity with the comparison of proportions to determine whether the understanding of proportions develops before formal operations. Results indicated that the comprehension of abstract relations requires formal operations.…