Implications of Socioeconomic Status on Academic Competence : A Perspective for Teachers

Studies suggest that socioeconomic status is a strong predictor of academic achievement. This theoretical paper proposes that despite the fact that low-socioeconomic status represents a risk factor that seems to undermine attentional skills and thus academic achievement, emerging evidence suggests the potential of new approaches, interventions and cognitive training programs to reverse the negative effects of poverty. The evidence presented in this paper may be of particular interest for teachers because it provides a larger scope to better understand the implications of socioeconomic status on learning and school achievement. This paper intends to make teachers aware that today more than ever they count on important knowledge and valuable resources like cognitive training intervention programs to help students. These intervention programs correct dysfunctional attention bringing hope to socially disadvantaged students who struggle in school.


Introduction
The present study highlights the graded relationship between socioeconomic status (SES) and academic achievement.Emerging evidence suggests that SES is a predictor of academic achievement.In fact, a body of research supports the notion that problematic attention is the hallmark of lower-income students and that this deficit is strongly associated to academic achievement (Caspi, Wright, Moffit, & Silva, 1998;Farah & Hackman, 2012;Neville et al., 2013;Sampson, Sharkey, & Raudenbush, 2007;Stevens, Lauinger, & Neville, 2009).Poor or lower-SES environments seem to generate significant stress on individuals compromising selective attention with implications for academic achievement.
We are afraid that such evidence may tempt some teachers and policy makers to believe that academic underachievement among socially disadvantaged students are an irreversible and inevitable outcome.With this in mind, this paper intends to provide a different perspective by indicating that certain characteristics like personal traits and the influence of a caring adult like a teacher, provides the pillars to reverse the harmful effects of poverty.Besides, the implementation of intervention and cognitive training programs are potentially beneficial, correcting cognitive features such as maladaptive information processing styles that impede school achievement (D'Angiulli, Herdman et al., 2008;D'Angiulli, Weinbergh et al., 2008;Lutz et al., 2009;Neville et al., 2013;Stevens & Bavelier, 2012).Consequently, we believe that teachers are in a particularly optimal position to help students with attentional problems.Teachers can refer them to cognitive training programs that enhance selective attention.
It is worth noting that although disorders like depression, schizophrenia, attention deficit disorder (ADD) and attention deficit hyperactivity disorder (ADHD) have been linked to attention, they should not be confused with attention dysfunction which is the central theme of this paper (Lutz et al., 2009).
Our research question is the following: Can low-income students with proper support improve academic performance?
Despite the fact that this paper neither provides empirical data on the effectiveness of one particular cognitive program against another, nor the evidence discussed here is comprehensive, it does provide important insights on cognitive training programs that enhance attention control.This manuscript includes the following sections:

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Why not to blame the poor

Why Not to Blame the Poor
The world recession increased unemployment and millions became poor and struggle to meet their basic needs.
Poverty is a risk factor that brings about segregation, violence, poor health, and school underachievement.Poor or low-income families are, in the first place, more likely to have partial or no health insurance coverage and therefore, tend to suffer more diseases and reduced life expectancy (Alley, Seeman, Kim, Hu, & Crimmins, 2006).According to Alley et al. (2006), low-income individuals develop earlier conditions like heart disease, diabetes, cancer and psychological issues.Lack of opportunities, isolation, and community and domestic violence seem endemic in lower-SES environments, leading to dysfunctional problems (Doll & Lyon, 1998).Under these circumstances the prospects of achieving academic success are significantly reduced (Caspi, Wright, Moffit, & Silva, 1998;Turner, Popkin, & Rawlings, 2008).
Life for low-income people is particularly difficult because they experience a plethora of needs and life issues that better-off individuals do not face and do not understand.In that sense, Mani, Mullainathan, Shafir, and Zhao (2013) seek to offer a different view related to unfair allegations about the poor as careless individuals, unproductive at work, that neglect health care and spend and ought too much.For Mani et al. (2013) it is clear that an individual with few resources and insufficient external support that attempts to comply with the demands of family and the demands of financial obligations, face a formidable task.Economic scarcity represents an important source of stress that limits choices and reduces the capacity to make effective decisions (Shah, Mullainathan, & Shafir, 2012).Mani et al. (2013) argue that better-off individuals are able to fulfill family expenses easily, but individuals in contexts of economic scarcity have accumulated debts, important decisions to make and more negative consequences to suffer if they err.The direct effect of this constant pressure is the attention completely focused on the demands of economic issues.The daily struggle to make ends meet activates a survival mechanism that makes them neglect or prioritize on other needs, disregarding, for example, proper supervision of their children (Mani et al., 2013).Mani et al. (2013) believe that the pressure to cover basic needs explains why low-income individuals take decisions differently.For example, when they pay to have their car repaired, then, they would not have money left to pay for home utilities, or if they attend an appointment at their children's school, they would not have time to attend another important appointment elsewhere.All these strains produce a scarcity mindset that taxes cognitive functions (Mani et al., 2013;Shah et al., 2012).
Poor or low-SES individuals experience greater occurrence of conflicts because disorganization, instability and unpredictability co-occur with other negative events (Brooks-Gunn & Duncan, 1997;Drake & Pandey, 1996;Dube et al., 2003;Evans & Kim, 2013).Residential instability, crowding, noise, toxins, cold, illness, and violence are common constraints of people living in poverty.

Poverty Related Stress: Maltreatment and Neglect
Poverty clearly puts children at greater risk of maltreatment.As poor environments tend to be chaotic, higher levels of stress are generated in the family and harsher parental discipline arises increasing the risk of maltreatment and neglect (Drake & Pandey, 1996;Schibilli & D'Angiulli, 2011;Steinberg, Catalano, & Dooley, 1981).Often, acute stress is generated at prenatal stages due to the overlapping of several risk factors, for example, when a pregnant woman suffer gender violence, get involved in drugs, and do not follow medical care during pregnancy (Chaffin, Kelleher, & Hollenberg, 1996).Furthermore, after a child's birth stress increases on the family and the whole situation worsens becoming unbearable and potentially detrimental for the developing child (Cicchetti, Rogosh, Gunnar, & Toth, 2010;Cicchetti & Toth, 2005;Danese & McEwen, 2012;Hoff, 2003;Rogosh, Dackis, & Cicchetti, 2011).
Not all children respond the same before traumatic experiences.Several characteristics related to age, gender, frequency of exposure, and degree of resilience, as well as the physical proximity to the violent events determine the children's developmental outcomes (Wegman & O'Banion, 2013).Although some children demonstrate resilience and bounce back from adversity, many others suffer permanent sequelae including chronic trauma that impacts daily functioning (Blaustein & Kininburgh, 2010).

Stress and Competence
SES plays a critical role in the development of competence which is central for school attainment (Sampson et al., 2007).At school, students develop competence that will determine the way they make decisions and solve problems (Masten et al., 2010).But poverty generates severe stress that disrupts important domains like competence (Caspi, Wright, Moffit, & Silva, 1998;Duncan, 2012;Masten et al., 2010;Pérez and Widom, 1994;Zielinsky, 2009).Farah and Hackman (2012) are of the opinion that lower-SES environments also lead to poor cognitive stimulation because low-income children tend to have fewer books and toys, less reading at home, and fewer visits to places that enhance culture like museums.In addition, poor parents have lower expectations and less concern about their children's vocabulary acquisition (Farah & Hackman, 2012).Severe stress and deficient cognitive stimulation have long-lasting effects on the individual's competence and this becomes more apparent at school or at work.

The HPA Axis
Studies show the significant impact of stress at a neurophysiological level.Stress increases the secretion of corticotrophin releasing hormones by the hypothalamus, stimulating the pituitary gland which in turn produces adrenocorticotropic hormones, activating the adrenal glands and increasing the levels of adrenaline and cortisol (the stress hormone; Delahanty, Nugent, Christopher, & Walsh, 2005).This adaptive mechanism known as the hypothalamus-pituitary-adrenal (HPA) axis (see Figure 1), when chronic, represents a marker of wear and tear or allostatic load associated with changes in the metabolic process, reduced dendritic branching, and deficits in attention and learning (Cicchetti & Rogosh, 2007;Danese & McEwen, 2012;Hackman & Farah, 2009;Hackman, Farah, & Meaney, 2010).
Figure 1.The hypothalamus-pitutitary-adrenal (HPA) axis Chronic stress can also lead to epigenetic modifications, that is, changes in the gene expression, increasing even more the risk of health issues across the lifespan (Evans, Chen, Miller, & Seeman, 2012).Chronic stress disrupts other important children domains such as attachment and self-regulation (Blaustein & Kinniburgh, 2010).The interference of self-regulatory mechanisms impedes young brains to adapt and learn effective ways to cope with stress.

Attention among Low-Income Students
Chronic stress is detrimental for learning because it compromises executive functions such as problem-solving, decision-making, planning, working memory (i.e., a cognitive system closely linked to complex cognitive tasks involved in language comprehension, learning and reasoning), and attention (Blaustein & Kinniburgh, 2010;Teicher, Anderson, & Polcari, 2012;Tottenham, & Sheridan, 2009).
As noted, problems of attention are more common among lower-income students (see Figure 2).They tend to experience more serious adversities at an early age that may lead to learned sustained vigilance, leading to focus attention on the identification of threats and missing relevant information as it seems to happen in intellectually demanding contexts like classrooms ( According to Neville and colleagues, parents attended two-hour classes during eight weeks plus some additional exercises that they had to perform with their children at home.At the end of the intervention program the children showed greater improvements in several aspects like neural measures of attention, language and IQ (Neville et al., 2013).Parents' participation seems to have been central to the improvements of children's attention and learning.
We consider that cognitive training programs in the form of mindfulness, yoga, exposure to nature, IBMT, computarized programs and particularly, action video games are potentially effective enhancing attention control either in children or adults.

Protective Factors: Personal Traits and Caring Adults
A significant longitudinal study performed in 1955 in Kauai, Hawaii, illustrates the capacity of low-income students to overcome adversities and succeed in school and life.In the study, Werner and Smith (1992) found that from 505 children who had experienced the cumulative effects of poverty, 10% were able to academically succeed, have productive lives, and remain mentally healthy even at mid-age (Werner, 1989).The study demonstrated that the combination of several protective factors (see Table 1) that included personal traits (e.g., high or normal IQ, social skills and ability to elicit positive responses from adults) and the influence of a caring adult like a family member, neighbor or teacher seems to have contributed to ameliorate or prevent the development of pathologies (Werner, 1989).The influence of a caring teacher appeared prominent.This kind of teacher was approachable, empathic and projected high expectations leaving long-lasting effects on students.
Table 1.Protective factors found in the Kauai study.Closely similar to Werner and Smith's study, investigations with children of schizophrenic parents in the United Sates (Garmezy, 1971) and orphans from Romania and England (Rutter & O'Connor, 2004), reinforce the idea of resilient functioning despite extremely difficult childhoods.
The combination of resilience, the assistance of a caring adult like a teacher, and the implementation of cognitive intervention training programs can be potentially helpful in moderating the effects of poverty and be conducive to learning and achievement.

Interventions and Brain Plasticity
It is worth noting that brain plasticity plays a central role in improving executive functions.The cognitive process of obtaining corrective information, new input, feedback, establishing associations and reorganizing present and prior knowledge is possible due to the brain malleability that lasts throughout the lifespan (Stevens et al., 2009).Studies with rodents showed that after exposure to enriching environments, neuroanatomical changes in the form of increased brain size, brain weight and dendritic branching were reported (Bryck & Fisher, 2012).Similar neurophysiological outcomes occur in human brains which may be indicative of the potential of intervention programs to correct executive functions deficits.
Nevertheless, Bryck and Fisher (2012) raise concerns about the lack of strong evidence indicating whether the positive outcomes obtained from laboratory-based training transfer to real world situations.In this regard, different studies seem to confirm that the benefits of cognitive training transfer to real life situations (see Klinghbergh et al., 2005;Rueda, Rothbart, McCandliss, Saccomano, & Posner, 2005;Stevens & Bavelier, 2012;Stevens, Fanning, Coch, Sanders, & Neville, 2008).It seems that the amazing plasticity of the brain facilitates the correction of maladaptive information processing habits enabling the individual to perform effectively in real-world contexts.

Parental Involvement
It is worth noting that parental involvement has a positive impact on students' academic outcomes.According to Wang and Gordon (1994), parental involvement facilitates connection between school and home, increases attendance and improves academic achievement.Parental involvement also has positive effects during those interventions that address attentional problems, as the authors of the Family-Based Training Program model discussed earlier attest (Neville et al., 2013).

Answer to Research Question
We are of the opinion that the evidence presented in this article is strong enough as to answer our research question: Can low-income students with proper support improve academic performance?Our answer is yes because the evidence provided in our analysis shows that despite histories of poverty, abuse and neglect, in addition to high genetic risks, it is possible for at-risk individuals to bounce back from adversity, display competence in several domains and have productive lives.Interventions and cognitive training programs can be potentially effective in correcting executive functioning deficits related to attention.
We believe that now more than ever teachers count on important knowledge and resources that facilitates their mission.Full implementation of cognitive training programs in schools would increase the prospects of academic achievement among socially disadvantaged students.

Conclusion
A growing body of clinical experience and research supports the notion that chronicity of stress is more pervasive among lower-income individuals.Many of them have to deal with a confluence of multiple stressors that impact cognition, behavior and general health.Stressful experiences are cumulative leading to wear and tear that compromise selective attention and increase the risk of academic failure.It becomes central for teachers and others involved in education to understand that many of our students come from deprived, volatized and stressful environments that induce maladaptive information processing habits.Attentional deficits are a by-product of social inequality.Understanding this reality would entice teachers to refer disadvantaged students to cognitive training intervention programs that enhance students' cognition and facilitate success in school and life.
The present paper intends to yield a clear insight into the consequences of children's dramatic experiences that generate neurophysiological changes with implications on academic competence.This paper underscores the potential of intervention and cognitive training programs to reverse the negative effects of poverty.With this in mind this paper seeks to create awareness on the existence of effective paths that promote resilience, enhance attention, improve academic performance, and ultimately, reduce the academic achievement gap.Caring and effective teachers increase the students' likelihood of completing school and engaging in post-secondary education.Moreover, in the wake of a severe recession with declining opportunities, high unemployment and increased rates of school underachievement and desertion, many individuals find themselves at heightened risk of social exclusion.For this reason the school should represent an effective institution that produces intellectually competent individuals as a foundation to meaningful employment, ethical responsibility and full integration in society.
The hypothesis stated here clearly needs to be improved by more research.The studies on attention discussed in this paper were by no means comprehensive.We encourage investigation and expansion of scholarship in the field, promoting the development and implementation of effective educational policies designed to prevent and treat attentional deficits.Fortunately, now more than ever teachers count on effective tools designed to empower and engage learners, enhance academic skills and change life trajectories regardless of socioeconomic backgrounds.
than a two year difference in ages between the resilient child and the next sibling.d. one or more caring adults like caring teachers in the child's life the level of attention from the primary caregiver f. internal locus of control g. support from extended family members or friends h.ability to elicit positive responses from adults i. faith obtained from a religious group j. academic skills k. normal or high intelligence l. a teacher as a role model m.participation in extracurricular activities, particularly those that promoted interaction and cooperation n. involvement in hobbies Neville et al. (2013)Schibli & D'Angiulli, 2011; Shackman, Shackman, &  Pollack, 2007).Consistent with these findings the work ofNeville et al. (2013)has shown positive outcomes among socially disadvantaged pre-kinder students.According toNeville et al. (2013), several weeks after the implementation of the Family-Based Training Program with children and parents, they observed significant improvements in attention and other cognitive functions.The inclusion of parents is part of the Family-Based Training Program.