Increasingly used in a variety of disciplines, evidence synthesis methods such as systematic reviews and meta-analysis can help researchers and practitioners identify trends and effective interventions and uncover theoretical gaps to address specific topics and issues (e.g., the effect of the gamification approach on learning outcomes). Based on a…

The first years of life lay the foundations for a child's future development and learning. Many countries have increased their financial support for provision of early childhood education and care (ECEC) over the past years. More recently, the focus of debate has been shifting from expanding access to affordable ECEC to enhancing its quality. A…

Three major methods of survey research, face-to-face interviews, telephone interviews, and mail questionnaires, are compared with respect to the quality of the data. The literature on experimental comparisons of these methods is reviewed, and the effects of the mode of data collection on aspects of data quality are examined. The effects of the…