
In the last WAGER, we noted that prevalence estimates across major studies were relatively reliable, suggesting that the problem gambling construct under investigation in these studies was similar. However, in spite of this reliability, we also raised the important question of whether this construct was actually what it has been thought to be. While most commonly used, the concordance among various measures is only one index of validity (i.e., convergent validity). Although rarely assessed, screening instruments also should provide very different estimates when they measure conceptually different constructs (i.e., discriminant or divergent validity). In this issue of the WAGER, we... Read more →