Sentences with phrase «limited empirical study»

Not exact matches

Because there have been only limited studies specifically related to the effects of religious television, in order to answer the question thoroughly the researcher in religious television is forced to extrapolate from empirical studies in related mass - communication areas.

Using empirical data from this monitoring and from ongoing field studies the convention would support, scientists could more thoroughly assess surveys» cumulative long - term impacts on marine life and identify areas where seismic activities should be prohibited or temporarily limited to protect important habitats or vulnerable populations.

However, as empirical studies are limited we have no a priori global estimate, and we might expect significant geographic variation or demographic stochasticity [39], [40].

A second source of disputes over the effectiveness of choice are the limits of each individual empirical study of school choice.

Although studies regarding teacher effectiveness in the United States abound, «a limited number of empirical studies have been conducted in China» (Liu & Meng, 2008, p. 2).

While empirical research in the field of digital technologies and social studies was limited, a small but growing number of cheerleading and how - to articles (Friedman & VanFossen, 2010 p. 53), alongside calls to wake the metaphorical «sleeping giant» (Martorella, 1997), in order for social studies to remain a relevant field of study in the information age (Fontana, 1997) emerged within the literature.

However, they also cite a variety of studies in which the upper or lower limits are wide — where some are empirical.

For some other studies, especially empirical analyses of adaptation and vulnerability, the scenarios were of limited relevance and were not adopted.

Despite doubts all round about whether this measure will, if passed, have the effect hoped for, Scotland might take heart from a study published last month which, the authors say, is «the first empirical evaluation of the impact of minimum pricing as a public health measure designed to limit consumption.»

With few robust empirical studies of legal systems as CAS, researchers are left to gesture at seemingly evident assertions, with limited scientific support.

To address the limited empirical research on the putative educational impact of such policies, this study used multilevel structural equation models to investigate the longitudinal associations between teacher evaluation and reward policies, and student mathematics achievement and dropout with a national sample of students (n = 7,779) attending one of 431 public high schools.

Some studies suggest that upwards of three - quarters of maltreated children have disordered attachments, but that the proportion may diminish with age.19 The limited empirical work on attachment in foster children suggests that they are more likely than nonfoster children to have insecure and disorganized attachments.

The search was limited by language (the paper had to be in English), by methodology (the study had to be an empirical study, experimental replication, follow - up study, longitudinal study, prospective study, retrospective study, quantitative study, or treatment outcome / randomized clinical trial), by publication type (the study had to be a journal article published in a peer - reviewed journal), and by sample (the study had to be conducted on humans).

While the empirical evidence is limited, most of the available studies have examined problem gambling in relation to intimate partner violence (IPV) victimisation or perpetration.