Assessment is an integral and vital part of teaching and learning, providing feedback on progress through the assessment period to both learners and teachers. However, if test items are flawed because of misconceptions held by the questions setter, then such test items are invalid as assessment tools. Moreover, such flawed items are also likely to…

The present study aimed to investigate the effect of conceptual change texts oriented instruction on 10th grade students' understanding of solubility equilibrium concept. The misconceptions related to solubility equilibrium concept were obtained through interviews with high school chemistry teachers and related literature. The data were obtained…

The purpose of this study was to explore the effects of conceptual change texts oriented instruction on 9th grade students' understanding of chemical bonding concepts. In this study, the main aim of the preparation of conceptual change texts was to activate students' prior knowledge and misconceptions and to help them to understand the chemical…

The issue of whether professional social workers make better child welfare workers than nonsocial workers is a considerably complex one. Simply determining better is itself a difficult undertaking. For example, does better mean reduced turnover among professionally trained social worker child welfare specialists, or should it mean better outcomes…

This study represents the first attempt to elucidate and detail the types of misconceptions high school students hold relating to basic concepts and topics of nuclear chemistry. A diagnostic multiple-choice test was administered to 157 tenth-grade students (15-16 years old) and the data were analyzed. The results show that high school students…

This article contends that the modern descendant of B. F. Skinner's experimental analysis of behavior, "behavior analysis," and as well his 1957 masterwork "Verbal Behavior," have rarely if ever been seriously contemplated by applied linguists for possible contributions to the field. Rather, a pat literature of dismissal has developed that…

This study focused on students' misconceptions related to evaporation, evaporation rate, and vapour pressure. Open-ended diagnostic questions were used with 107 undergraduates in the Primary Science Teacher Training Department in a state university in Turkey. In addition, 14 students from that sample were interviewed to clarify their written…

Quite often, educators tell families of children who are learning English as a second language to speak only English, and not their native language, at home. Although these educators may have good intentions, the authors argue that the educators' advice to families is misguided and stems from misunderstandings about the nature of bilingualism and…

Nonscience majors often come into science courses with misconceptions about the nature of science. As part of an integrative mathematics and science course, we have structured a continued dialogue regarding the nature of science through inquiry-based classroom activities and an extended investigation.

The study reported in this paper intended to trace what Chinese children think about life and identify their naive theories. Fifty-eight 5-year-old children in Taiwan from 39 kindergartens were interviewed using a semi-structured instrument. Results indicate that preschool children have preconceptions about the concept of life even before entering…

This teachers guide contains activities and materials created to teach astronomy concepts to children from grades K-8. It is organized into four units: (1) Earth and Stars; (2) Spheres and Orbits; (3) Stars and Gravity; and (4) Scales and Measurement. Activities are arranged within each unit around six content topics: (1) Earth; (2) Solar System;…

This booklet presents risk management strategies for organizations employing people with disabilities. First, the booklet contrasts common beliefs (such as that disabilities are obvious) with actual facts and their implications for risk management. It then discusses several risk management related exceptions in the Americans with Disabilities Act…

This study focused on the knowledge of six outstanding science students who solved an osmosis problem meaningfully. That is, they used appropriate and substantially accurate conceptual knowledge to generate an answer. Three generated a correct answer; three, an incorrect answer. This paper identifies both the accurate and inaccurate conceptions…

Two studies examined preschoolers' understanding of germs as causes of illness. Previous research suggests that preschoolers know that certain behaviors lead to illness without understanding why or how. In the first study, 22 children between 4 and 5 years old were presented with 12 brief stories describing characters engaged in either dangerous…

Diagnosing cognitive errors possessed by examinees can be considered as a pattern classification problem that is designed to classify a sequential input of stimuli into one of several predetermined groups. The sequential inputs in this paper's context are item responses, and the predetermined groups are various states of knowledge resulting from…