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The Edinburgh Handedness Inventory (EHI) is the most widely used handedness inventory. The EHI has some weaknesses: it has been suggested it is outdated; the instructions are frequently misunderstood by participants; and the response format produces skewed responses in those who avoid extreme responding. This study introduces the Fazio Laterality Inventory (FLI) as an alternative that addresses these limitations. In an initial development study, the 12-item instrument showed acceptable internal reliability (Cronbach's alpha =.921), and a one-component solution explained 55.5% of the variance. After removal of two items, a validation study revealed the instrument again had good internal reliability (Cronbach's alpha =.943) with a one-component solution explaining 65.8% of the variance. The FLI did not correlate as strongly as expected with the EHI, likely due to its lack of an "Oldfield Admonition" as well as the finer scaling of the response format. Additional analyses of the FLI as a whole and each item are offered. A scoring procedure and cutoffs for utilizing the FLI in clinical and research settings are suggested.

Evidence is steadily accumulating to support a neurodevelopmental basis for pedophilia. This includes increased incidence of non-right-handedness, which is a result primarily of prenatal neural development and solidified very early in life. Minor physical anomalies (MPAs; superficial deviations from typical morphological development, such as un-detached earlobes) also develop only prenatally, suggesting them as another potential marker of atypical physiological development during the prenatal period among pedophiles. This study administered the Waldrop Physical Anomaly Scale to assess the prevalence of MPAs in a clinical sample of men referred for assessment following a sexual assault, or another illegal or clinically significant sexual behavior. Significant associations emerged between MPA indices and indicators of pedophilia, including penile responses to depictions of children, number of child victims, and possession of child pornography. Moreover, greater sexual attraction to children was associated with an elevated craniofacial-to-peripheral anomalies ratio. The overall sample demonstrated a greater number of MPAs relative to prior samples of individuals with schizophrenia as well as to healthy controls.

The Edinburgh Handedness Inventory (EHI) is persistently the most used inventory to evaluate handedness, being neuropsychological investigation and clinical practice. Despite this, there is no information on how this instrument functions in a Portuguese population. The objective of this study was therefore to examine the sociodemographic influences on handedness and establish psychometric properties of the EHI in a Portuguese sample. The sample consisted of 342 adults (157 men and 185 women), assessed with a battery of neuropsychological tests. The mean EHI Laterality Quotient was 63.52 (SD ¼ 38.00). A much high percentage of ambiguous-handedness compared to left-handedness was detected. An inconsistency was found between the preference for formal education activities (writing-drawing-using scissors) and the remaining EHI activities. From sociodemographic variables, only age, area, and regions of residence showed significant influence on EHI scores. The reliability and temporal reliability of EHI were adequate. Confirmatory factor analysis indicated a one-factor model (� 2 /df ¼ 2.141; TLI ¼ 0.972; CFI ¼ 0.979; RMSEA ¼ 0.058). The inconsistency between formal education and nonformal activities could be an indicator of social pressure. The present data give support for the notion that handedness measured by EHI is potentially sensitive to sociodemographic and cultural influences. KEYWORDS Edinburgh handedness; hand preference; handedness; inventory; psychometric properties 65 handedness) (Dragovic, Milenkovic, & Hammond, 2008). To evaluate handedness, the two methods most commonly used include observation of the use of the dominant hand and the application of inventories answered by the individual (Barbieri & Gobbi, 2009). 70 The three most popular inventories (van Strien, 2002) are by Crovitz and Zener (1962 Q5), Annett (1970), and Oldfield (1971). The Edinburgh Handedness Inventory (EHI; Oldfield, 1971) is the most used from the previous three (Fazio & Cantor, 2015; Veale, 2014). The EHI 75 offers the advantage of being a simple and brief method of evaluating laterality using a quantitative scale (Oldfield, 1971). The first version of the Oldfield Inventory was based on a modified version of the Humphrey inventory with 80 20 items (Büsch, Hagemann, & Bender, 2010). There is

The Edinburgh Handedness Inventory (EHI) has consistently remained the most used handedness inventory despite its limitations. The psychometric properties of handedness inventories, however, are increasingly important due to their use in matching groups for neuroimaging research. This study compared the performance of the EHI and the Fazio Laterality Inventory (FLI) in a population with atypical handedness. Whereas the EHI demonstrated a single-factor loading in this population, the FLI's previously demonstrated single factor dissociated into two factors: fine motor/ballistic movements and expressive/instrumental movements. This dissociation is similar to that seen when tests of cognitive constructs--which tend to load on a single factor in intact populations--dissociate when administered to populations with difficulties in the assessed domain. This pattern of performance lends further support for the use of the FLI to more accurately assess handedness. Future research in other populations with atypical laterality may illuminate additional factors of the FLI.