We examined the psychometric properties of a German translation of the Child Global Report version of the Alabama Parenting Questionnaire (APQ). A total of 1219 German school-children (644 boys and 575 girls), ages 10–14 years participated in the study. The APQ was subjected to exploratory and confirmatory factor analysis. Exploratory factor analysis produced five factors that were largely cons...

OBJECTIVES Existing questionnaires on personal views of one's own cognitive functioning are either unduly long, restrict their focus on memory, and/or capture complaints rather than the general status quo. A brief 9-item questionnaire was developed, assessing metacognition with two subscales covering metamemory and metaconcentration. METHODS The questionnaire was tested in a sample of healthy...

Even though a majority of the commonly used questionnaires were initially developed in English language, it is still possible to translate these questionnaires into another language. However, one should not simply assume that the validity of the items that are translated from one questionnaire to another remains intact. Therefore, it is important to translate the questionnaire using a process t...

BACKGROUND To assess the internal consistency reliability and construct validity of the Dutch version of the World Health Organization Quality of Life Instrument-Older Adults Module (WHOQOL-OLD). METHODS The psychometric properties of the Dutch WHOQOL-OLD were examined in a cross-sectional study using a sample of 1,340 people aged 60 years or older. Participants completed a Web-based question...

The participants in the NIMH-MATRICS Consensus Development Conference on Negative Symptoms recommended that an instrument be developed that measured blunted affect, alogia, asociality, anhedonia, and avolition. The Brief Negative Symptom Scale (BNSS) is a 13-item instrument designed for clinical trials and other studies that measures these 5 domains. The interrater, test-retest, and internal co...

BACKGROUND Perseverance in applying the therapy is an important determinant of its success, but evaluation of perseverance is extremely complex, and therefore, alternative method of processing the results by the Culig's questionnaire of perseverance is presented. SUBJECTS AND METHOD Psychometric properties of the questionnaire on a sample of 225 examinees have been calculated and the factor s...

This paper reports two studies of chronic pain patients (n = 444) relevant to the psychometric properties of the Pain Disability Index (PDI), a self-report instrument that has been used to assess the degree to which chronic pain interferes with various daily activities. In the first study, patients with high PDI scores reported more psychological distress (P less than 0.001), more severe pain c...

Internal consistency reliability is the degree of correlation between a scale's items. Internal consistency is calculated by Kuder-Richardson's formula 20 for dichotomous choices and Cronbach's alpha for polytomous items. 0.70 to 0.90 internal consistency is acceptable. 5-25 participants are needed for each item when computing the internal consistency of a twenty-item scale. Internal consistenc...

This study describes the psychometric properties of the Children's Separation Anxiety Scale (CSAS), which assesses separation anxiety symptoms in childhood. Participants in Study 1 were 1,908 schoolchildren aged between 8 and 11. Exploratory factor analysis identified four factors: worry about separation, distress from separation, opposition to separation, and calm at separation, which explaine...

Objectives: Participation is defines as involvement within a life situation and the ultimate outcome for individuals with disabilities. One of the most common cause of chronic disability that restricts participation of individuals is Cerebral palsy (CP). The main goal of rehabilitation is empowering participation of their clients in different life areas. To achieve changes in participation, ass...