5 Ways To Overcome Junk Data From mTurk (and online surveys more generally)

The data quality on Amazon Mechanical Turk (mTurk) has suffered for years now (Chandler & Paolacci, 2017; Moss & Litman, 2018; Chmielewski & Kucker, 2019; Ahler et al., 2020; Kennedy et al., 2020; MacInnis et al., 2020). There are a few ways to protect online survey data quality. In this post, I will briefly cover five strategies for weeding out junk data in online research (not just via mTurk), from easiest to hardest.

Continue reading 5 Ways To Overcome Junk Data From mTurk (and online surveys more generally)

The meaning of ‘statistical significance’ and of p-values

A 2019 paper in the Advances in Methods and Practices in Psychological Science found that most psychology textbooks, instructors, and students misinterpret ‘statistical significance’ and p values. Talk about a headline! More important than the headline, however, are the right interpretations and what we can do to correct widespread misinterpretations. In this post, I explain the authors’ findings and the three solutions they propose.

Continue reading The meaning of ‘statistical significance’ and of p-values