Anxiety and depression have been observed in the course of conducting extensive neurologic examinations but only recently have been the focus of hypothesis-driven research.
Statistical analyses of genome scans are mainly focused on hypothesis testing, with estimation of the corresponding effect sizes regarded as a secondary goal.
Most of the discussion is focused on hypothesis testing that is directed towards evaluating the strength of an evidence for a proposition.
Two thresholds are used as the effects within the BA44 and IPL are the main focus of our hypothesis and we wish to highlight the strength of the result.
In addition, since the primary focus of the hypothesis is the effect of N-nitrosamines dietary exposure in relation to acute leukemia, only these specific food groups were collected in the questionnaire.
Because the focus of our hypothesis is on the initial cause of T2DM, our discussion is limited to early- and mid-stage disease, i.e., patients with FBS ≤200 mg/dL.
Later, Wickel (2009) and Wickel and Bruijnzeel (2009) presented new syntheses of experiences that corroborated these hypotheses and extended the focus of the hypotheses proposed by Bruijnzeel (2004) from forests to other forms of native vegetation.
Brain size is a trait of historical and evolutionary interest [ 13], and is on occasion the focus of unpopular hypotheses related to normal function and individual differences [ 14].
At an early stage, the initial findings that clomipramine has a specific anti-obsessive effect directed the focus of neurochemical hypotheses on OCD towards the monoamine serotonin [ 9- 12].
Notably, the slow (typically <1 Hz) oscillation of neocortical neuronal membrane potentials between a depolarized "up-state" with action potentials, and a hyperpolarized "down-state" with neuronal quiescence occurring during non-rapid eye movement (NREM) sleep and some types of anesthesia is the focus of several hypotheses for the function of sleep [ 2- 4].
This chapter focuses on hypothesis-testing procedures because of their widespread use in the health sciences literature.
