Standing in the Gaps: Examining the Effects of Early Gifted Education on Black Girl Achievement in STEM

2017 ◽  
Vol 28 (4) ◽  
pp. 290-312 ◽  
Author(s):  
Jemimah L. Young ◽  
Jamaal R. Young ◽  
Donna Y. Ford
Keyword(s):  
Gifted Education ◽  
Science Achievement ◽  
Comparison Group ◽  
Black Girls ◽  
Mean Difference ◽  
Effect Sizes ◽  
Group Differences ◽  
White Girls ◽  
Girls In Science ◽  
Difference Effect

The purpose of this study was to explore the differential effects of access to gifted education on the mathematics and science achievement of fourth-grade Black girls. This study utilized mean difference effect sizes to examine the magnitude of differences between groups. By convention, White girls were included as a comparison group. Girls receiving gifted instruction and girls not receiving gifted instruction were the populations of interest ( N = 13,868). The mathematics results suggest that Black girls participating in gifted education statistically significantly outperform Black girls in the comparison group. The mean difference effect sizes for within-group differences were almost twice as large for Black girls compared with White girls. The science results indicate that Black girls receiving gifted instruction outperformed Black girls in the comparison group. White girls, regardless of access to gifted instruction, statistically significantly outperformed Black girls in science. These results inform the recommendations provided.

scholarly journals Has the time come to stop using the “standardised mean difference”?

2021 ◽  
Vol 3 (3) ◽  
Author(s):  
Pim Cuijpers
Keyword(s):  
Effect Size ◽  
Mean Difference ◽  
Effect Sizes ◽  
Binary Outcomes ◽  
Number Needed To Treat ◽  
Statistical Concept ◽  
Clinical Meaning ◽  
Meta Analyses ◽  
Size Display ◽  
Difference Effect

Background Most meta-analyses use the ‘standardised mean difference’ (effect size) to summarise the outcomes of studies. However, the effect size has important limitations that need to be considered. Method After a brief explanation of the standardized mean difference, limitations are discussed and possible solutions in the context of meta-analyses are suggested. Results When using the effect size, three major limitations have to be considered. First, the effect size is still a statistical concept and small effect sizes may have considerable clinical meaning while large effect sizes may not. Second, specific assumptions of the effect size may not be correct. Third, and most importantly, it is very difficult to explain what the meaning of the effect size is to non-researchers. As possible solutions, the use of the ‘binomial effect size display’ and the number-needed-to-treat are discussed. Furthermore, I suggest the use of binary outcomes, which are often easier to understand. However, it is not clear what the best binary outcome is for continuous outcomes. Conclusion The effect size is still useful, as long as the limitations are understood and also binary outcomes are given.

Skin Conductance and Subjective Arousal in Anxiety, Depression, and Comorbidity

2017 ◽  
Vol 31 (4) ◽  
pp. 145-157 ◽  
Author(s):  
Laina E. Rosebrock ◽  
Denada Hoxha ◽  
Catherine Norris ◽  
John T. Cacioppo ◽  
Jackie K. Gollan
Keyword(s):  
Skin Conductance ◽  
Comparison Group ◽  
Group Differences ◽  
Autonomic Arousal ◽  
Emotional Picture ◽  
Self Reports ◽  
Picture Viewing ◽  
Anxiety Depression ◽  
Subjective Arousal ◽  
Healthy Participants

Abstract. Skin conductance (SC), an autonomic arousal measure of the sympathetic nervous system, is a sensitive and useful index of physiological arousal. However, SC data does not always align with self-reports of arousal. SC, self-reported arousal, and their association, known as emotion coherence, may be altered with the presence of major psychiatric illness. This study investigated group differences on SC reactivity and self-reported arousal while viewing positive, negative, neutral, and threat images between participants diagnosed with major depression with and without anxiety disorders relative to a healthy comparison group. Additionally, the strength and direction of association between SC reactivity and arousal ratings (emotion coherence) was examined within groups. Unmedicated participants were recruited via online and paper advertisements around Chicago and categorized into one of four groups (Depressed: n = 35, Anxious: n = 44, Comorbid: n = 38, Healthy: n = 29). SC and affect ratings were collected during and after a standardized emotional picture viewing task. SC reactivity was significantly higher during threat images, regardless of group. During threat image presentation, increased SC reactivity occurred during the last few seconds before picture offset; for all other stimulus types, SC reactivity decreased significantly after picture offset. Anxious and comorbid participants rated emotional images as more arousing than healthy participants; there were no observed differences in arousal ratings between depressed and healthy participants. Heightened reactivity in anxiety may manifest in arousal ratings without corresponding increased SC reactivity to emotional images. Results do not suggest underlying altered psychophysiology in this sample of depressed or anxious participants.

Efficacy of a Second-Grade Science Program: Increasing Science Outcomes for All Students

2021 ◽  
pp. 074193252198909
Author(s):  
Christian T. Doabler ◽  
William J. Therrien ◽  
Maria A. Longhi ◽  
Greg Roberts ◽  
Katherine E. Hess ◽  
...  
Keyword(s):  
Science Achievement ◽  
Controlled Trial ◽  
Science Instruction ◽  
Effect Sizes ◽  
Second Grade ◽  
Guided Inquiry ◽  
Randomized Controlled ◽  
Second Grade Students ◽  
Cluster Randomized ◽  
Business As Usual

This study, which was reviewed through the Registered Report process, examined the initial efficacy of the Scientific Explorers program (Sci2) on second-grade students’ science achievement. Sci2 is grounded in the growing body of empirical research on science instruction, embedding principles of explicit instruction within a guided inquiry-based design framework. Eighteen second-grade classrooms were randomly assigned to treatment or control conditions. A cluster randomized controlled trial was employed, with 294 students nested within classrooms and classrooms nested within condition. The Sci2 program was implemented for a total of 10 lessons (5 hr) in treatment classrooms, whereas control classrooms provided business-as-usual science instruction. Overall treatment effects were observed on three of four science outcome measures. The reported effects were moderate to large, with effect sizes (Hedges’ g) ranging from 0.48 to 0.94. Moderation analyses indicated that science knowledge at pretest did not moderate Sci2’s effects. Implications for practice and research are discussed.

scholarly journals Pre-post effect sizes should be avoided in meta-analyses

2016 ◽  
Vol 26 (4) ◽  
pp. 364-368 ◽  
Author(s):  
P. Cuijpers ◽  
E. Weitz ◽  
I. A. Cristea ◽  
J. Twisk
Keyword(s):  
Comparison Group ◽  
Meta Analysis ◽  
Effect Sizes ◽  
Behaviour Therapy ◽  
Natural Processes ◽  
Cognitive Behaviour ◽  
Post Test ◽  
The Difference ◽  
Meta Analyses ◽  
Highly Cited

AimsThe standardised mean difference (SMD) is one of the most used effect sizes to indicate the effects of treatments. It indicates the difference between a treatment and comparison group after treatment has ended, in terms of standard deviations. Some meta-analyses, including several highly cited and influential ones, use the pre-post SMD, indicating the difference between baseline and post-test within one (treatment group).MethodsIn this paper, we argue that these pre-post SMDs should be avoided in meta-analyses and we describe the arguments why pre-post SMDs can result in biased outcomes.ResultsOne important reason why pre-post SMDs should be avoided is that the scores on baseline and post-test are not independent of each other. The value for the correlation should be used in the calculation of the SMD, while this value is typically not known. We used data from an ‘individual patient data’ meta-analysis of trials comparing cognitive behaviour therapy and anti-depressive medication, to show that this problem can lead to considerable errors in the estimation of the SMDs. Another even more important reason why pre-post SMDs should be avoided in meta-analyses is that they are influenced by natural processes and characteristics of the patients and settings, and these cannot be discerned from the effects of the intervention. Between-group SMDs are much better because they control for such variables and these variables only affect the between group SMD when they are related to the effects of the intervention.ConclusionsWe conclude that pre-post SMDs should be avoided in meta-analyses as using them probably results in biased outcomes.

Sex-Role Preference and Parental Imitation within Groups of Middle-Class Whites and Lower-Class Blacks

1972 ◽  
Vol 30 (2) ◽  
pp. 651-654 ◽  
Author(s):  
William D. Ward
Keyword(s):  
Middle Class ◽  
Sex Role ◽  
Lower Class ◽  
Black Children ◽  
Black Girls ◽  
Second Grade ◽  
Black Boys ◽  
White Children ◽  
White Girls ◽  
Role Preference

32 second-grade children were assessed on measures of sex-role preference and parental imitation. The middle-class white boys were more masculine in preference than the middle-class white girls were feminine ( t = 3.43, p < .01), and lower-class black girls tended to be more mother imitative than the lower-class black boys were father imitative ( r = 2.09, p < .06). No such differences were found in sex-role preference for blacks or in imitation for whites. The results indicated that there was a dominant masculine influence in the development of sex-role preference among middle-class white children and a dominant feminine influence in parental imitation among lower-class black children.

Trajectories of Body Mass and Self-Concept in Black and White Girls

2012 ◽  
Vol 53 (1) ◽  
pp. 2-16 ◽  
Author(s):  
Sarah A. Mustillo ◽  
Kimber L. Hendrix ◽  
Markus H. Schafer
Keyword(s):  
Body Image ◽  
Body Mass ◽  
Growth Models ◽  
Self Esteem ◽  
Black Girls ◽  
Self Concept ◽  
Health Study ◽  
Black And White ◽  
White Girls ◽  
Body Image Discrepancy

As a stigmatizing condition, obesity may lead to the internalization of devalued labels and threats to self-concept. Modified labeling theory suggests that the effects of stigma may outlive direct manifestations of the discredited characteristic itself. This article considers whether obesity’s effects on self-concept linger when obese youth enter the normal body mass range. Using longitudinal data from the National Growth and Health Study on 2,206 black and white girls, we estimated a parallel-process growth mixture model of body mass linked to growth models of body image discrepancy and self-esteem. We found that discrepancy was higher and self-esteem lower in formerly obese girls compared to girls always in the normal range and comparable to chronically obese girls. Neither body image discrepancy nor self-esteem rebounded in white girls despite reduction in body mass, suggesting that the effects of stigma linger. Self-esteem, but not discrepancy, did rebound in black girls.

Self-Esteem of Adolescent Females as Related to Race, Economic Status, and Area of Residence

1987 ◽  
Vol 64 (2) ◽  
pp. 559-566 ◽  
Author(s):  
Kathleen Housley ◽  
Sue Martin ◽  
Harriett Mc Coy ◽  
Phyllis Greenhouse ◽  
Flavelia Stigger ◽  
...  
Keyword(s):  
Economic Status ◽  
Self Esteem ◽  
Black Girls ◽  
Adolescent Females ◽  
The Self ◽  
Urban Girls ◽  
White Girls

The Rosenberg Self-esteem Scale was used to measure the self-esteem of 109 14- and l6-yr.-old (±6 mo.) girls. The self-esteem scores were categorized by economic status, race, and area of residence. For urban girls mean self-esteem of upper economic status subjects was significantly higher than that of those at the lower economic status. The self-esteem of upper economic status urban girls was significantly higher than the self-esteem of their rural peers. Finally, the self-esteem of the urban black girls was significantly higher than the self-esteem of the urban white girls.

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