Effects of individualized assignments on biology achievement

A pretest-posttest, randomized, two groups, experimental, factorial design compared effects of detailed and nondetailed assignments on biology achievement over seven and a half months. Detailed assignments (favoring field independence and induction) employed block diagrams and stepwise directions. Nondetailed assignments (favoring field dependence and deduction) virtually lacked these. The accessible population was 101 tenth grade preparatory school male students. The 95 students enrolled in first year biology constituted the sample. Two by three ANOVA was done on residualized posttest score means of the students. Totally, the detailed students achieved significantly higher than the nondetailed students. This significantly higher achievement was only true of detailed students in the middle thirds of the deviation intelligence quotient (DIQ) range and of the grade point average (G.P.A.) range after the breakdown into upper, middle, and lower thirds of intellectual capability (ability and achievement). The upper third detailed DIQ grouping indirectly achieved higher than its peers, whereas the lower detailed DIQ third achieved lower than its peers. Thus, high capability students apparently benefit from flow and block diagrams, inductions, field independence, and high structure, whereas low capability students may be hindered by these.     

Impact of instructional leadership on high school student academic achievement in China

Asia Pacific Education Review - The purpose of this study was to examine the impact of instructional leadership on high school students’ academic achievement in the Chinese context and to...     

The effect of a brief teacher training on student achievement

On the basis of previously determined correlations between teacher behavior and student achievement, a training program for mathematics teachers was developed. Previous research had established that this training did change the behavior of teachers. This article reports the effects of the training program on teacher behavior, student achievement, and student attitudes towards mathematics. From this study it appeared that the timing of the training was important for its effect on student achievement. There was no effect on student attitude.     

Type of high school biology program and its effect on student attitude and achievement in college life science

A specially designed questionnaire and a modification of the “Science Classroom Activity Checklist” by L. H. Krockendorfer were used to categorize 299 life science students at the University of Iowa into two groups; those with high school biology backgrounds founded in the BSCS philosophy and those with traditionally oriented backgrounds. These groups were compared with respect to grade achievement in a college life science course, ratings of their background for the college course, and their attitude toward biology as established by their high school experience. With respect to inquiry and student-centered methods, texts were revealed as poor indicators of types of programs offered.     

The effect of concept mapping on students' anxiety and achievement in biology

The results of recent studies into the use of the concept mapping heuristic seem to demonstrate that meaningful learning results through its use in science classrooms. While this underscores the need to use more effective instructional strategies in science teaching, the issue of the intervening variable of anxiety in learning and science achievement, and the possible use of a metacognitive strategy in anxiety reduction have not been addressed. This study, therefore, sought to find out if the metacognitive strategy of concept mapping reduces anxiety and thereby enhances achievement in biology. A total of 51 (30 boys, 21 girls) senior secondary one (grade 10) students participated in this experiment. Two instruments—the Zuckerman Affect Adjective Checklist and the Biology Achievement Test—were used in pre- and posttest administrations to measure the treatment effect on anxiety and achievement, respectively. Findings support the stand that concept mapping is significantly more effective than the traditional/expository teaching strategy in enhancing learning in biology. In addition, it apparently reduces students' anxiety towards the learning of biology. A significant reduction of anxiety was noticed for male subjects.     

The effects of matching instructional strategy with selected student characteristics on ninth grade physical science students' attitudes and achievement

The study investigated the benefits of a matching model of instruction for students enrolled in ninth grade physical science classes in one high school in a small, urban school district. Based on social learning theory, three independent variables were identified for purposes of matching: need level, cognitive style, and locus of control; attitude and achievement outcomes served as the dependent variables. Results of separate analyses of covariance revealed that attitude toward science in general improved with matching, but achievement, attitude toward physical science, attitude toward instruction, and attitude toward the teacher did not improve. Recommendations for subsequent “matching” experiments are discussed in light of the findings in this investigation.     

The determinants of student achievement in Turkey

Recent achievement test results show that Turkish students have been performing poorly compared to students from other countries. Using science literacy results from the PISA 2006 survey, we aim to measure the determinants of student achievement in Turkey within the education production function framework. We find that program types have large effects on student achievement. Since many students are allocated across program types as a result of a centralized exam, we try to control for past academic achievement and also for differences in the average socioeconomic background of students in a given school. The results indicate that students cluster in schools according to their socioeconomic background, and previous academic record is important, however, the effects of program types persist. Policies to augment socioeconomic background, such as conditional cash transfers and lifelong learning programs that prioritize parents will increase educational output.     

The effect of teacher vagueness terms on student performance in high school biology

High school biology students (n = 48) were each randomly assigned to one of four groups defined by possible combinations of two teacher vagueness conditions (high vagueness versus low vagueness) and two post-lesson conditions (test, then lesson evaluation versus lesson evaluation, then test). Each group was presented a lesson over the vascular system of angiosperms. After the lesson, each group was tested on comprehension of the material and each group completed a lesson evaluation. Teacher vagueness terms significantly affected student achievement and student perception of lesson effectiveness. These findings are discussed in relation to previous research on teaching clearly.     

The role of teacher instructional practices in student collaboration

Prior research on collaborative learning identifies student behaviors that significantly predict student achievement, such as giving explanations of one’s thinking. Less often studied is the role of teachers’ instructional practices in collaboration among students. This article investigates the extent to which teachers engage in practices that support students’ explanations of their thinking, and how these teacher practices might be related to the nature of explanations that students give when asked by the teacher to collaborate with each other. The teachers observed here, all of whom received specific instruction in eliciting the details of student thinking, varied significantly in the extent to which they asked students to elaborate on their suggestions. This variation corresponded to variation across classrooms in the nature and extent of student explanations during collaborative conversations and to differences in student achievement.     

The association between student ratings of specific instructional dimensions and student achievement: Refining and extending the synthesis of data from multisection validity studies

This synthesis extends part of Peter Cohen's well-known examination of the association between student ratings of instruction and student achievement. The results of increasing the number of specific instructional dimensions considered and of preserving more of the information in the evaluations by multiple coding into these dimensions are compared with Cohen's findings. Extending the analysis further by changing the unit of analysis and the method of averaging correlations generally decreases the size of the associations. The instructor's preparation and organization, clarity and understandableness, stimulation of interest, motivation of students to reach high standards, encouragement of discussion and openness to others' opinions, and elocutionary skills consistently explain 10% or more of the variance in student achievement regardless of the method of averaging or the unit of analysis used. The size of the association between an instructional characteristic and student achievement, as one indicator of the characteristic's importance, is compared with three other indicators (extent to which students say the characteristic is important, extent to which faculty say it is important, and size of its correlation with the overall evaluation of the instructor).     

The longitudinal effects of achievement goals and perceived control on university student achievement

In the area of achievement motivation, students’ beliefs pertaining to achievement goals and perceived control have separately guided a large amount theoretical and empirical research. However, limited research has considered the simultaneous effects of goals and control on achievement. The purpose of this study was to examine primary and secondary control as potential mediators of the effects of mastery and performance goals on achievement, measured as final percentage in Introductory Psychology and GPA. The sample consisted of 224 first-year university students at a Canadian doctoral granting university. All participants completed two surveys and consented to release their grades to the researchers. We found that neither performance goals nor mastery goals had direct effects on achievement. However, performance goals had a positive indirect effect on achievement through primary control. Indirect effects also emerged for mastery goals, positively through primary control and negatively through secondary control. These results offer one explanation for the often-found non-significant relationship between mastery and achievement and are discussed in light of interventions aimed to modify goals and/or control and thereby increase achievement.     

近代物理实验学生成绩量化评分的实践与效果分析

探讨了近代物理实验传统的教学与成绩评分模式,提出了量化评分体系的完善与细化问题,分析了该体系实施后的效果,对指导学生实验成绩评定及提高实验教学水平有一定帮助。