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The Oxford knee score (OKS) and OKS Activity and Participation Questionnaire (OKS-APQ) are patient-reported outcome measures used to assess people undergoing knee replacement surgery. They have not explicitly been tested for unidimensionality (whether they measure one underlying trait such as ‘knee health’). This study applied item response theory (IRT) to improve the validity of the instruments to optimize for ongoing use. Participants undergoing primary total knee replacement (TKR) provided preoperative and postoperative responses for OKS and OKS-APQ. Confirmatory factor analysis (CFA) were performed on the OKS and OKS-APQ separately and then on both when pooled into one. An IRT model was fitted to the data. 2972 individual response patterns were analyzed. CFA demonstrated that when combining OKS and OKS-APQ as one instrument, they measure one latent health trait. A user-friendly, free-to-use, web app has been developed to allow clinicians to upload raw data and instantly receive IRT scores. The OKS and OKS-APQ can be combined to use effectively as a single instrument (producing a single score). For the separate OKS and OKS-APQ the original items and response options can continue to be posed to patients, and this study has confirmed the suitability of IRT-weighted scoring. Applying IRT to existing responses converts traditional sum scores into continuous measurements with greater granularity, including individual measurement error. •The Oxford knee score and Oxford knee score-Activity and Participation Questionnaire measure one latent trait, coined as ‘knee health’.•Combining scores can potentially overcome floor and ceiling effects.•The presented web app can convert scores from tradition sumscore to item response theory scores.•Item response theory accounts for missing data, existing datasets can retain value.

Background Perceptions of aging have been found to independently contribute to various aspects of health and wellbeing in old age. Since valid and reliable perceptions of aging instruments are unavailable in Dutch, these associations have not yet been tested in the Netherlands. This study examined the reliability and construct validity of the Dutch-language version of the 7-dimension Aging Perceptions Questionnaire (APQ). Furthermore, in order to decrease the response burden, while retaining the APQ’s original factor structure, a short version of the APQ (APQ-S) was developed as an alternative to the 5-dimension Brief APQ (B-APQ). Methods A Dutch translated version of the APQ was administered to a large sample of community-dwelling elders in the Netherlands, aged 70 to 99 ( n  = 1280), alongside measures of wellbeing and physical functioning. Results Confirmatory factor analyses confirmed the multidimensionality of the APQ. APQ scales were found to have good reliability and acceptable construct validity, yet several areas of localized strain were detected. These areas were addressed during item reduction, resulting in the 21-item APQ-S with an acceptable reliability and validity and a better overall model fit. While several notable differences were found, APQ-S results were largely comparable to that of the 5-dimension B-APQ. Conclusion With its multidimensional nature and acceptable psychometric properties, the Dutch language version of the APQ may prove to be an invaluable instrument to assess the seven perceptions of aging dimensions among older populations for geriatric research. However, use of a shortened version is advised, as these are less labor intensive and areas of localized strain are addressed. The choice between the APQ-S and the B-APQ should be based on theoretical and practical considerations concerning the dimensional structure most suitable for the study.

Since parenting practices have been shown to play an important role in the development of a child’s emotional, cognitive and social functioning, it is important to reliably measure this construct across various cultures and countries. A widely used instrument to assess parenting practices is the Alabama Parenting Questionnaire (APQ). However, no previous studies have verified the five-factor structure of this measure using confirmatory factor analysis. The aim of this study was to verify factor structure and examine psychometric properties of the Parent Global Report version of the APQ in a Polish sample. A total of 911 mothers and 497 fathers of children in the age range of 6–13 years from the community sample completed the Alabama Parenting Questionnaire as well as the Rating Scales for Parents assessing symptoms of attention deficit hyperactivity disorder (ADHD) and oppositional-defiant disorder (ODD). Confirmatory factor analysis indicated that the five-factor model is characterized by a good fit in the Polish sample of mothers and quite a good fit in the sample of fathers. The Polish version of the APQ has a good construct validity. Children’s ODD symptoms were positively correlated with negative parenting practices and negatively with positive parenting practices. Children’s ADHD symptoms were the most strongly correlated with the inconsistent discipline subscale. Relations between ADHD and ODD symptoms and positive parenting practices were lower than with negative parenting practices. Our study confirms the five-factor structure of the Polish version of the APQ for parents and shows that parenting practices can be reliably measured in a Polish sample with the use of the Parent Global Report version of the APQ.

Foster care is a determining resource for the child protection system. The scientific evidence shows that the psychosocial benefits of foster care for minors within the protection system are superior to those that can be provided by residential resource centres. Hence, during the last decade in Spain, work has been done to establish foster care as a priority resource. The objective of our work is focused on describing what type of families make up the Family Foster Care resource of the Province of Alicante and their parenting styles. A total of 207 people (72 minors and 132 foster parents) were evaluated, applying the following: 1) an ad hoc questionnaire composed of 12 questions; and 2) The Alabama Parenting Questionnaire consisting of 42 items (Spanish adaptation from Servera, 2007). More than 50% of the families are nuclear families and do not have biological children, with the duration of the foster care exceeding two years. The reconstituted families stand out due to its parental involvement and positive upbringing, while the nuclear and single-parent families show higher scores in consistent discipline. It is essential to know the profile of the foster families in order to achieve an adequate foster care process for minors.

Background Population aging is an important phenomenon for many countries worldwide. Considering the growing trend of aging population in Iran, it is very important to consider beliefs and perceptions of old people about aging. The Aging Perception Questionnaire (APQ) is one of the most common instruments that used to measure aging comprehension. The present study was a methodological inquiry that aimed to examine validity and reliability of the Persian version of the Aging Perception Questionnaire (APQ). Methods Forward-backward procedure was used for translation. Content validity and face validity were evaluated qualitatively. In order to evaluate construct validity a cross section study was conducted and both exploratory and confirmatory factor analyses were performed. In order to determine reliability, internal consistency (the Cronbach’s alpha) and stability (Intraclass Correlation Coefficient -ICC) were estimated. Results A total of 500 elderly people attending the community centers in Tehran, Iran were entered in other study and completed the Persian version of the questionnaire. Most elderly were female (52.8%).The mean age of participants was 68.33 (SD ± 6.10) years. The results obtained from exploratory factor analysis showed a four-factors solution (consequences negative, emotional representation, control positive and consequences positive) that jointly explained 52.8% of the total variance observed. In addition the confirmatory factory analysis showed a good fit for the data. Finally, the Cronbach’s alpha coefficient of 0.83 ranging from 0.80 to 0.87 was obtained for the whole scale and the subscales. The ICC value of 0.96 ranging from 0.90 to 0.98 was found for the whole scale and the subscales. Conclusion The results indicated that the Persian version of APQ is valid and can be used to measure aging perception in Iran.

To understand processes associated with better or poorer psychotherapy outcomes is vital. This study examined and contrasted interaction patterns between one therapist and two depressed 17-year-old girls, Johanna (good outcome) and Sonja (poor outcome), in short-term psychoanalytic therapies selected from an RCT. Outcome data were collected regarding level of inter- and intra-personal functioning and symptoms of depression. Process data were obtained using the Adolescent Psychotherapy Q-Set on all available sessions. Analyses yielded five relational patterns or “interaction structures” in the two therapy processes; Three explained most of the variance in sessions with Johanna (i.e., ‘positive working alliance’, ‘therapist’s active use of psychodynamic techniques’, and ‘a receptive patient’) and two explained more of the variance in sessions with Sonja (i.e., ‘therapist using a more problem-solving and symptom-oriented approach’ and ‘patient displaying limited capacity for mentalization’). The processes in the two cases presented differences related to mentalization, psychological mindedness, and attachment style of the patients. The therapist used different therapeutic approaches, favouring more psychodynamic interventions in the good outcome case and a more problem-solving and symptom-oriented approach with the poor outcome case. In the latter case, the relationship seemed to be more of a struggle.

Background Aging perceptions have been found to be major contributors to health in old age. To quantitatively explore aging perceptions among elderly Turkish migrants, valid and reliable Turkish-language instruments are needed. The objective of the current study was to examine the construct validity and reliability of the Turkish-language version of the seven-dimension Aging Perceptions Questionnaire Short version (APQ-S) in a sample of community-dwelling elderly Turkish migrants in the Netherlands. Methods A questionnaire including the Turkish-language APQ-S was administered to 438 community-dwelling Turkish migrants aged 65–99 years who resided in Rotterdam, the Netherlands. The APQ-S includes 21 items in seven dimensions ( timeline chronic and cyclical , consequence positive and negative , control positive and negative , and emotional representations ). The questionnaire also contained items measuring well-being, physical and mental health-related quality of life, and number of chronic conditions. Results The latent factor model of the Turkish APQ-S was found to have an acceptable fit (root mean square error of approximation = .06; standardized root mean square residual = .07; comparative fit index = .90). Each indicator loaded significantly on its corresponding latent factor, and standardized factor loadings > .40 supported the convergent validity of the Turkish APQ-S dimensions. The APQ-S was also found to have acceptable construct validity in terms of its inter-factor structure and its expected associations with various health measures and age, gender, educational level, and marital status. Contrary to expectations, income level was not associated with any APQ-S dimension. With the exception of timeline cyclical ( α  = .56), each APQ-S dimension had acceptable reliability, with Cronbach’s alpha values ranging from .75 ( timeline chronic ) to .88 ( control positive ). Most APQ-S dimension scores differed significantly between elderly Turkish migrants and a general population of elderly Rotterdam residents, with Turkish elders having more negative and less positive aging perceptions. Conclusion The Turkish-language version of the APQ-S is a psychometrically valid and reliable instrument for the assessment of aging perceptions among elderly Turkish migrants. Further research is needed to gain insight into aging perceptions and their health and sociodemographic correlates in this population.

The SPC control chart is an important quality tool to determine whether there are abnormalities in the production process. When making control charts, the sample size is generally selected based on experience, which has certain limitations. To determine the sample size more accurately, the average run length (ARL) is used to measure the quality characteristics of the control chart, and the relationship between the average run length and the two types of errors is analysed to establish an APQ-based sample size related mathematical model. The model is analysed using Minitab software and Excel to finally determine the appropriate sample size scale for different cases.

Background This study examined ethnic differences in ageing perceptions of migrant Turkish and native Dutch elders residing in Rotterdam, and explored whether such differences could be attributed to culture or resources (personal, physical, economic and/or social). Methods This study was based on combined data from two research projects focusing on the health and well-being of community-dwelling elderly people in Rotterdam. The first dataset contained data from 994 native Dutch elders aged 70–99 years. The Rotterdam municipal register was used to randomly sample respondents, stratified by age group (70–74, 75–79, 80–84, and ≥85 years) and neighbourhood. Of the 2593 eligible respondents, 1075 returned filled-in questionnaires (41% response rate). Of these 1075 respondents a total of 994 were natives which is the sample we selected for the current study. The second dataset contained data from 680 Turkish migrants aged 65–90 years. All Turkish people aged ≥65 years were identified using the Rotterdam municipal register and invited to participate. In total, 680 Turkish respondents returned filled-in questionnaires (32% response rate; out of 2350). Ageing perceptions were measured using the 21-item Ageing Perceptions Questionnaire–Short (APQ-S). Respondents were additionally asked about their current general health, income, education, marital status, age and gender. Results The results of this study clearly reveal the importance of culture for all ageing perceptions among Turkish and Dutch elders. We found that age, health, and education were also important factors. For Turkish elders, health and education were the most important resources; for Dutch elders, age and health were most important in relation to ageing perceptions. Ageing perceptions were generally more negative among Turkish than among Dutch elders. Turkish elders reported more negative awareness of ageing, felt less in control of their ageing processes, and had more negative emotional reactions to ageing. They also believed more firmly that their ageing processes would have both negative and positive effects on their lives. Results revealed poorer health, lower income and educational levels among Turkish than among Dutch elders. In addition, many more Dutch than Turkish elders were single/widowed/divorced. Conclusion Physical and personal resources, in addition to culture, are most important for positive ageing perceptions among native Dutch and migrant Turkish elders residing in Rotterdam, the Netherlands. These resources are health and education for Turkish elders, and health and age for Dutch elders. Overall, ethnicity remained a significant predictor of ageing perceptions when other resources were taken into account.

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 consistent with the a priori scale structure. These factors included dimensions of parental involvement, positive parenting, poor monitoring/supervision, inconsistent discipline, and corporal punishment. Fit indexes from confirmatory factor analyses suggested that the five factor model represented a satisfactory solution for the data, with some minor modifications in scale content. These findings provide initial support for the factorial validity of the child report version of the APQ in German families.