Experiments with ADX rats revealed that 93% of the CRH-immunoreactive neurons contained a Fos-immunoreactive nucleus, which suggests that the differential Fos-expression in APO-SUS and APO-UNSUS rats represents a differential activation of the CRH neurons. This hypothesis is discussed in relation to...
In hypothesis testing, you are asked to decide if a claim is true or not. For example, if someone says “all Floridian’s have a 50% increased chance of melanoma”, it’s up to you to decide if this claim holds merit. One of the first steps is to look up a z-score, and i...
Given the presumed developmental dynamics of TEC progenitors, we tested the hypothesis that the early progenitor population dominates in the embryonic and perinatal stages of development, whereas the postnatal progenitor population is more prevalent in adolescent and adult stages. To do this, we assigned...
Hypothesis tests for two proportions can answer research questions about two populations or two treatments that involve categorical data. The null hypothesis for the two-proportions test is always a statement of “no difference.” H0: p1 − p2 = 0 The alternative...
Through analyzing the interactome, it was suggested that many pathogen effector targets are in fact important host proteins (i.e., cellular hubs) rather than NLR proteins. This supports the guard hypothesis of plant immunity, which proposes that most NLR proteins are indirectly linked with pathogen...
such as the tendency to overestimate their degree of responsibility for negative events, may also engage in excessive compulsive checking and show apparent deficits in memory. These types of cognitive biases (i.e., mistaken beliefs) are the focus of another (and more fruitful) hypothesis of OCD...
Advantages of two-tailed hypothesis tests You can detect both positive and negative effects. Two-tailed tests are standard in scientific research where discovering any type of effect is usually of interest to researchers. One-Tailed Hypothesis Tests ...
Our hypothesis is that the beverages effects could be mediated in part by the differential CAF content. Although in vitro studies indicated that CAF was able to scavenge hydroxyl radicals [69], this ability was not clearly observed in the highest concentration of our in vivo antigenotoxicity ...
A) T-Test B) Chi-square test C) ANOVA D) T-Test of ANOVA The null hypothesis for ANOVA posits no difference among population means, as in other hypothesis tests, but the research hypothesis, in this case, is a bit different. Why? Post a null hypothe...
Orangutans have one of the slowest-paced life histories of all mammals. Whereas life-history theory suggests that the time to reach adulthood is constrained by the time needed to reach adult body size, the needing-to-learn hypothesis instead suggests tha