Seeing is Believing: Experimental Evidence on the Impact of Eyeglasses on Academic Performance, Aspirations, and Dropout among Junior High School Students in Rural China
We present the results of a randomized trial testing the impact of providing free eyeglasses on academic outcomes of junior high school students in a poor rural area of western China. We find that providing free prescription eyeglasses approximately halves dropout rates over a school year among students who did not own eyeglasses at baseline. Effects on dropout are mirrored by improvements in student performance on standardized exams in math and aspirations for further schooling
Parental Behavior and Social-Emotional Development among Infants in Rural Shaanxi Province, China
The first years of life comprise a critical period for social-emotional development that has implications for lifelong outcomes. One factor that is thought to impact infant socialemotional development is parenting behavior and practices, such as reading to, singing to, and playing with their child. In this study we examine the situation of parenting practices and infant social-emotional development among a sample of 1,350 infants aged 18-30 months in rural Shaanxi Province, China. Our results show that few parents engage in positive parenting behaviors and social-emotional developmental delays are prevalent among our sample. Our multivariate analysis finds that this high prevalence of social-emotional delay is correlated with this lack of positive parenting behavior. Descriptive analysis suggests that the deficit of positive parenting behaviors may be related to a lack of reliable information on parenting. We suggest that the Chinese government take steps to improve access to information on parenting practices in order to improve the developmental outcomes of infants and young children in rural areas.
Keywords: parenting; social-emotional; infant development; rural China
Impact of Free Glasses and a Teacher Incentive on Children's Use of Eyeglasses: A Cluster-Randomized Controlled Trial
Purpose: To study the effect of free glasses combined with teacher incentives on in-school glasses wear among Chinese urban migrant children.
Design: A cluster randomized trial.
Methods: Children with visual acuity (VA) ≤6/12 in either eye owing to refractive error in 94 randomly chosen primary schools underwent randomization by school to receive free glasses, education on their use, and a teacher incentive (Intervention), or glasses prescriptions only (Control). Intervention group teachers received a tablet computer if ≥80% of children given glasses wore them during unannounced visits 6 weeks and 6 months (main outcome) after intervention.
Results: Among 4376 children, 728 (16.7%, mean age 10.9 years, 51.0% boys) met enrollment criteria and were randomly allocated, 358 (49.2%, 47 schools) to Intervention and 370 (50.8%, 47 schools) to Control. Among these, 693 children (95.2%) completed the study and underwent analysis. Spectacle wear was significantly higher at 6 months among Intervention children (Observed [main outcome]: 68.3% vs 23.9%, adjusted odds ratio [OR] = 11.5, 95% confidence interval [CI] 5.91–22.5, P < .001; Self-reported: 90.6% vs 32.1%, OR = 43.7, 95% CI = 21.7–88.5, P < .001). Other predictors of observed wear at 6 months included baseline spectacle wear (P < .001), uncorrected VA <6/18 (P = .01), and parental spectacle wear (P = .02). The 6-month observed wear rate was only 41% among similar-aged children provided free glasses in our previous trial without teacher incentives.
Conclusions
Free spectacles and teacher incentives maintain classroom wear in the large majority of children needing glasses over a school year. Low wear among Control children demonstrates the need for interventions.
Purpose
To study the effect of free glasses combined with teacher incentives on in-school glasses wear among Chinese urban migrant children.
Design
Cluster-randomized controlled trial.
Methods
Children with visual acuity (VA) ≤6/12 in either eye owing to refractive error in 94 randomly chosen primary schools underwent randomization by school to receive free glasses, education on their use, and a teacher incentive (Intervention), or glasses prescriptions only (Control). Intervention group teachers received a tablet computer if ≥80% of children given glasses wore them during unannounced visits 6 weeks and 6 months (main outcome) after intervention.
Results
Among 4376 children, 728 (16.7%, mean age 10.9 years, 51.0% boys) met enrollment criteria and were randomly allocated, 358 (49.2%, 47 schools) to Intervention and 370 (50.8%, 47 schools) to Control. Among these, 693 children (95.2%) completed the study and underwent analysis. Spectacle wear was significantly higher at 6 months among Intervention children (Observed [main outcome]: 68.3% vs 23.9%, adjusted odds ratio [OR] = 11.5, 95% confidence interval [CI] 5.91–22.5, P < .001; Self-reported: 90.6% vs 32.1%, OR = 43.7, 95% CI = 21.7–88.5, P < .001). Other predictors of observed wear at 6 months included baseline spectacle wear (P < .001), uncorrected VA <6/18 (P = .01), and parental spectacle wear (P = .02). The 6-month observed wear rate was only 41% among similar-aged children provided free glasses in our previous trial without teacher incentives.
Conclusions
Free spectacles and teacher incentives maintain classroom wear in the large majority of children needing glasses over a school year. Low wear among Control children demonstrates the need for interventions.
Teaching to the Tails: Teacher Performance Pay and the Distribution of Student Achievement
Abstract: Growing evidence suggests that teachers in developing countries often have weak or misaligned incentives for improving student outcomes. In response, policymakers and researchers have proposed performance pay as a way to improve student outcomes by tying concrete measures like achievement scores to teacher pay. While evidence from randomized experiments generally indicates that performance pay programs are effective at improving student achievement in developing countries, there has been considerable variation in how much these programs affect student achievement. The goals of this study are to: (1) examine the impacts of different teacher performance pay designs on student achievement, both for the average student and for students across the baseline achievement distribution; and (2) examine the mechanisms through which different teacher performance pay designs affect student achievement (for the average student and for students across the baseline achievement distribution). The sample includes a total of 8,892 students and their grade 6 mathematics teachers from 216 schools from 16 nationally-designated "poverty" counties in Yulin Prefecture (Shaanxi Province) and Tianshi Prefecture (Gansu Province) in rural, northwest China. To test the impacts of the different teacher performance pay designs, researchers designed a cluster-randomized controlled trial. In this trial, schools were randomly allocated to 4 different treatment arms: (1) control--no teacher incentive pay; (2) levels incentive--performance pay contract stipulating rewards based on student achievement levels on endline tests; (3) gains incentive--performance pay contract based on student achievement gains from baseline and endline tests; and (4) pay-for-percentile incentive--performance pay contract stipulating rewards based on student growth percentiles. Surveys were used to collect information from the students, teachers, and school administrators. Findings reveal that: (1) Only "pay-for-percentile" incentives had a positive, statistically significant impact on average student achievement; (2) Teacher incentives based on "levels" or "gains" were ineffective; (3) "Gains" incentives led teachers to only focus on certain types of students, which led to negligible learning (on average) across all students; and (4) Pay-for-percentile incentives led to score gains across all students (on average). The results of this study may have important implications for how Teacher Performance Pay Policy can be implemented in China and in other developing countries.
More is not always better: evidence from a randomised experiment of computer-assisted learning in rural minority schools in Qinghai
The education of poor and disadvantaged populations has been a long-standing challenge for education systems in both developed and developing countries. Drawing on data from two randomised controlled trials involving two cohorts of grade 3 students in poor rural minority schools in China’s Qinghai province, this paper explores the effects of computer-assisted learning (CAL) on student academic and non-academic outcomes for underserved student populations, and how interactions between the CAL programme and existing classroom resources affect the programme effectiveness. Results show that CAL could have significant beneficial effects on both student academic and non-academic outcomes. However, when the scope of the programme expanded to include a second subject (in this case, math – which was added on top of the Mandarin subject matter that was the focus of the first phase of the programme), some schools had to use regular school hours for CAL sessions. As a result, the phase II programme did not generate any (statistically) significant improvement over the first phase.
The Gender Gap Among School Children in Poor Rural Areas of Western China: Evidence From a Multi-Province Dataset
Pay by Design: Teacher Performance Pay Design and the Distribution of Student Achievement
Abstract: We present results of a randomized trial testing alternative approaches of mapping student achievement into rewards for teachers. Teachers in 216 schools in western China were assigned to performance pay schemes where teacher performance was assessed by one of three different methods. We find that teachers offered “pay-for-percentile” incentives (Barlevy and Neal 2012) outperform teachers offered simpler schemes based on class average achievement or average gains over a school year. Moreover, pay-for-percentile incentives produced broad-based gains across students within classes. That teachers respond to relatively intricate features of incentive schemes highlights the importance of close attention to performance pay design.
The Impact of Integrating ICT with Teaching: Evidence From a Randomized Controlled Trial in Rural Schools in China
Abstract: Recent attention has been placed on whether integrating Information Communication Technology (hereafter, ICT) into education can effectively improve learning outcomes. However, the empirical evidence of the impact of programmes that adopt ICT in schooling is mixed. Theory suggests it may be due to differences in whether or not the ICT pro-grammes are integrated into a teaching programme of a class. Unfortunately, few empirical studies compare the relative effectiveness of programmes that integrate ICT into teaching with the ones that do not. In order to understand the most effective way to design new programmes that attempt to utilize ICT to improve English learning, we conducted a clustered randomized controlled trial (RCT) with some schools receiving ICT that was in-tegrated into the teaching programme of the class; with some schools that received ICT without having it integrated into the teaching programme; and with other schools being used as controls. The RCT involved 6304 fifth grade students studying English in 127 rural schools in rural China. Our results indicate that when the programme is integrated into the teaching programme of a class it is effective in improving student test scores relative to the control schools. No programme impact, however, is found when the ICT programme is not integrated into the teaching program. We also find that when ICT programmes are inte-grated into teaching, the programmes work similarly for students that have either high or low initial (or baseline) levels of English competency. When ICT programmes are not in-tegrated with teaching, they only raise the educational performance of English students who were performing better during the baseline.
To Board or Not to Board: Evidence from Nutrition, Health and Education Outcomes of Students in Rural China
The debate over whether boarding school is beneficial for students still exists in both developing and developed countries. In rural China, as a result of a national school merger program that began in 2001, the number of boarding students has increased dramatically. Little research has been done, however, to measure how boarding status may be correlated with nutrition, health and educational outcomes. In this paper, we compare the outcomes of boarding to those of non-boarding students using a large, aggregate dataset that includes 59 rural counties across five provinces in China. We fi nd that for all outcomes boarding students perform worse than non-boarding students. Despite these differences, the absolute levels of all outcomes are low for both boarding and non-boarding students, indicating a need for new policies that will target all rural students regardless of their boarding status.