Use of position and feature cues in discrimination learning by the whiptail lizard (Cnemidophorus inornatus)

Animals use a variety of cue types to locate and discriminate objects. The ease with which particular cue types are learned varies across species and context. An enormous literature contains comparisons of spatial cue use to use of other cue types, but few experiments examine the ease with which various nonspatial cues are learned. In addition, few studies have examined cue use in reptiles. Thus, the authors compared whiptail lizards' (Cnemidophorus inornatus) ability to learn and reverse a discrimination using either position (left or right) or visual feature cues. Lizards learned and reversed the task using position cues faster and with greater accuracy than using feature cues.     

The threat simulation theory of the evolutionary function of dreaming: Evidence from dreams of traumatized children

The threat simulation theory of dreaming (TST) () states that dream consciousness is essentially an ancient biological defence mechanism, evolutionarily selected for its capacity to repeatedly simulate threatening events. Threat simulation during dreaming rehearses the cognitive mechanisms required for efficient threat perception and threat avoidance, leading to increased probability of reproductive success during human evolution. One hypothesis drawn from TST is that real threatening events encountered by the individual during wakefulness should lead to an increased activation of the system, a threat simulation response, and therefore, to an increased frequency and severity of threatening events in dreams. Consequently, children who live in an environment in which their physical and psychological well-being is constantly threatened should have a highly activated dream production and threat simulation system, whereas children living in a safe environment that is relatively free of such threat cues should have a weakly activated system. We tested this hypothesis by analysing the content of dream reports from severely traumatized and less traumatized Kurdish children and ordinary, non-traumatized Finnish children. Our results give support for most of the predictions drawn from TST. The severely traumatized children reported a significantly greater number of dreams and their dreams included a higher number of threatening dream events. The dream threats of traumatized children were also more severe in nature than the threats of less traumatized or non-traumatized children.     

Ways of coping and religious commitment in Muslim adolescents

The aim of this study was to find out methods of coping used most frequently by Kurdish adolescents and to investigate the relationship of methods of coping with their level of religiosity and gender. A convenience sample of 171 secondary school students, self-identified as Muslims, took part in answering two sets of questionnaires: methods of coping and religious commitment. Means, standard deviations, t-test and Pearson Correlation Coefficients were used to analyse the data. Results of the study suggest that the method of coping used most frequently by the sample was spiritual connection while passivity and avoidance were the least used methods of coping. Religiosity was correlated with all other methods of coping except seeking social support and passivity. Girls used avoidance and passivity for coping more than boys did. Kurdish Muslim adolescents use various methods to cope with problems they face. Counsellors in secondary schools should pay more attention to maladaptive methods of coping particularly among girl adolescents.     

Exploring a sample of university students’ perceptions of menstruation

This study aimed to explore how a sample of young South African women constructed their perceptions of menstruation. The sample comprised 16 racially/ethnically diverse female university students (blacks = 4, whites = 2, coloured = 8; Christians = 11; Muslims = 5; aged 18 to 23 years). They participated in one of three focus group discussions on their constructions of menstruation. Findings from the discourse analysis indicated that the women perceive social control experiences of their menstruation—even in the context of medical understandings.     

Islamist Conservatism and the Demise of Islam Hadhari in Malaysia

This article argues that Islam Hadhari, as a model for development officially inaugurated during the administration of Malaysia's fifth Prime Minister, Abdullah Ahmad Badawi (2003–9), encountered failure. Its lack of success was significantly due to the rise of Islamist conservatives, who deliberately interpreted Islam Hadhari as a political instrument to impose Islamization from above in a manner not conducive to living in a spirit of peaceful coexistence in a multi-ethnic society. While on the one hand it promoted an Islam that cherishes the values of inclusivity, moderation and inter-religious tolerance, on the other hand Islam Hadhari unfortunately triggered defensive responses from Islamist conservatives. This ad hoc conservative alliance comprised religious leaders associated with the United Malays National Organization (UMNO), state religious functionaries, scholars affiliated to the opposition Islamic Party of Malaysia (PAS: Parti Islam SeMalaysia) and Islamist non-governmental organizations. The rise of this Islamist conservatism aggravated ethno-religious relations during Abdullah Ahmad Badawi's premiership, leading to the setbacks experienced by his government in the general elections of 2008. By then, the death knell had been sounded for Islam Hadhari. It was steadily consigned to the graveyard of history by the administration of Najib Razak, who took over from Abdullah in April 2009.     

Consequences of Ignoring Guessing Effects on Measurement Invariance Analysis

Pseudo-guessing parameters are present in item response theory applications for many educational assessments. When sample size is not sufficiently large, the guessing parameters may be ignored from the analysis. This study examines the impact of ignoring pseudo-guessing parameters on measurement invariance analysis, specifically, on item difficulty, item discrimination, and mean and variance of ability distribution. Results show that when non-zero guessing parameters are ignored from the measurement invariance analysis, item discrimination estimates tend to decrease particularly for more difficult items, and item difficulty estimates decrease unless the items are highly discriminating and difficult. As the guessing parameter increases, the size of the decrease in item discrimination and difficulty tends to increase, and the estimated mean and variance of ability distribution tend to be inaccurate. When two groups have heterogeneous ability distributions, ignoring the guessing parameter affects the reference group and the focal group differently. Implications of result findings are discussed.