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In this paper we explore whether mental representations about birth (birth‐related mindsets) assessed during pregnancy can predict labour and birth in the sense that the perception of birth as a natural (rather than a medical) event increases the probability of a low‐intervention birth. Birth, in turn, might affect short‐term and long‐term psychological well‐being. These assumptions were tested in a longitudinal study (N = 311), spanning the first half of pregnancy and up to 6 months after birth. The results of a single indicator model displayed a sequential process: women who held a more natural mindset prenatally were more likely to have low‐intervention births, which resulted in a more positive evaluation of the birth experience, which in turn predicted well‐being in the first weeks after birth (measured with ecological momentary assessment), and subsequently postpartum depression and post‐traumatic stress symptoms 8 weeks after birth as well as mother‐infant bonding 6 months after birth. The study demonstrates the relevance of psychological factors for childbirth. The construct of a birth‐related mindset could contribute to a better understanding of childbirth and help to make women's birth experiences safer and more satisfying and to improve the transition to motherhood. [ABSTRACT FROM AUTHOR]

We examine the predicted replicability of experimental research on system justification theory (SJT) by conducting a z‐curve analysis. Z‐curve is a meta‐analytic technique similar to p‐curve, but which performs better under conditions of heterogeneity. It estimates the predicted replication rate, average power, false discovery risk, and file drawer ratio (FDR) of a sample of studies. The z‐curve based on 116 papers and 232 unique samples suggests that the experimental SJT literature is likely to show low rates of replicability, as indicated by an overall average statistical power of 16%. Moderator analyses suggest that this may be driven in part by publication pressures, that the replicability of research in this area has improved since 2015, and that studies using system threat manipulations show particularly low estimated replication rates (ERR). Implications for the replicability and validity of the experimental SJT literature are discussed, and recommendations to increase the rigor of research are put forth. [ABSTRACT FROM AUTHOR]