3 research outputs found
A Multisite Preregistered Paradigmatic Test of the Ego-Depletion Effect
We conducted a preregistered multilaboratory project (k = 36; N = 3,531) to assess the size and robustness of ego-depletion effects using a novel replication method, termed the paradigmatic replication approach. Each laboratory implemented one of two procedures that was intended to manipulate self-control and tested performance on a subsequent measure of self-control. Confirmatory tests found a nonsignificant result (d = 0.06). Confirmatory Bayesian meta-analyses using an informed-prior hypothesis (δ = 0.30, SD = 0.15) found that the data were 4 times more likely under the null than the alternative hypothesis. Hence, preregistered analyses did not find evidence for a depletion effect. Exploratory analyses on the full sample (i.e., ignoring exclusion criteria) found a statistically significant effect (d = 0.08); Bayesian analyses showed that the data were about equally likely under the null and informed-prior hypotheses. Exploratory moderator tests suggested that the depletion effect was larger for participants who reported more fatigue but was not moderated by trait self-control, willpower beliefs, or action orientation.</p
Recommended from our members
Does Excess Body Fat Impair Bone Development?
Osteoporosis and obesity are major public health concerns with a combined cost of $164 billion spent in the United States alone. The effect of adipose tissue on bone was thought to be protective however further research suggests there is a detrimental effect through a connection involving the endocrine system. Insulin, adiponectin and leptin all affect the skeletal system and adipose tissue. Excess adipose tissue in individuals correlates with hyperinsulinemia, high levels of leptin and low levels of adiponectin. The connection between adipose tissue and bone is especially important in children during the pubertal growth spurt. During this time strong bones are developed in children that will carry them throughout their life. If adipose tissue has a negative effect on bone development bone strength may be impaired resulting in higher risk for fractures later in life. This review presents research in the areas of obesity and osteoporosis with the aim of identifying interrelationships, specifically focusing on children and bone development, and whether obesity has positive or negative effects on bone
A Multisite Preregistered Paradigmatic Test of the Ego-Depletion Effect
We conducted a preregistered multilaboratory project (k = 36; N = 3,531) to assess the size and robustness of ego-depletion effects using a novel replication method, termed the paradigmatic replication approach. Each laboratory implemented one of two procedures that was intended to manipulate self-control and tested performance on a subsequent measure of self-control. Confirmatory tests found a nonsignificant result (d = 0.06). Confirmatory Bayesian meta-analyses using an informed-prior hypothesis (delta = 0.30, SD = 0.15) found that the data were 4 times more likely under the null than the alternative hypothesis. Hence, preregistered analyses did not find evidence for a depletion effect. Exploratory analyses on the full sample (i.e., ignoring exclusion criteria) found a statistically significant effect (d = 0.08); Bayesian analyses showed that the data were about equally likely under the null and informed-prior hypotheses. Exploratory moderator tests suggested that the depletion effect was larger for participants who reported more fatigue but was not moderated by trait self-control, willpower beliefs, or action orientation