tl;dr: A Data for Progress survey replicating 1995's DDB Needham Life Style questions found double-digit drops in Americans' participation in social activities over the past 30 years, including entertaining at home (-21), attending church (-20), club meetings (-19), and playing cards (-19). Internet use (+90) and video gaming (+22) saw the biggest increases. The authors caution that methodological differences between the two surveys mean results should be read as suggestive trends rather than precise estimates.