Adult age differences in noninstrumental information-seeking strategies.

We often seek information without any explicit incentives or goals (i.e., noninstrumental information seeking, often noted as a manifestation of curiosity).

The role of interest in memory for trivia questions: An investigation with a large-scale database.

The importance of interest for memory performance has been established in previous studies. One way to induce interest in experiments is to use trivia questions. However, previous studies have used only a limited number of trivia questions and these questions differ substantially across studies, making it difficult to ensure the comparability and generalizability of the findings.

Meta-analysis to integrate effect sizes within an article: Possible misuse and Type I error inflation.

In recent years an increasing number of articles have employed meta-analysis to integrate effect sizes of researchers' own series of studies within a single article ("internal meta-analysis"). Although this approach has the obvious advantage of obtaining narrower confidence intervals, we show that it could inadvertently inflate false-positive rates if researchers are motivated to use internal meta-analysis in order to obtain a significant overall effect. Specifically, if one decides whether to stop or continue a further replication experiment depending on the significance of the results in an internal meta-analysis, false-positive rates would increase beyond the nominal level.