The top 10 Crossref articles are free to access each month
Access these articles free for January 2026
 
The Self-Reflection and Insight Scale: A new measure of private self-consciousness
Anthony M. Grant, John Franklin, and Peter Langford, 2002, 30(8), 821–835
 
Relationships between student engagement and academic achievement: A meta-analysis
Hao Lei, Yunhuo Cui, and Wenye Zhou, 2018, 46(3), 517–528
 
The empirical study of signature size
Richard L. Zweigenhaft, 1977, 5(1), 177–186
 
 
Gratitude and happiness: Development of a measure of gratitude and relationships with subjective well-being
Philip C. Watkins, Kathrane Woodward, Tamara Stone, and Russell L. Kolts, 2003, 31(5), 431–452
 
 
 
 
Effects of a smile on mood and helping behavior
Anneke Vrugt and Carolijn Vet, 2009, 37(9), 1251–1258
 
Measuring happiness with a single-item scale
Ahmed M. Abdel-Khalek, 2006, 34(2), 139–150