The object of the study is multi-word lexemes (samplaikos in Lithuanian), defined as combinations composed of two or more inflective or non-inflective parts of speech, grammatically and semantically perceived as one unit. The goal of the dissertation is to investigate the autonomy of multi-word lexemes in the Lithuanian language. Two monolingual corpora (the non-annotated Corpus of the Contemporary Lithuanian Language and the morphologically annotated Lithuanian language corpus) and the parallel German-Lithuanian corpus have been used for the extraction and the analysis of data. Several research methods have been applied: descriptive, corpus-based, statistical, and contrastive. The statements to be defended are as follows: 1. According to the broad conception of phraseology, multi-word lexemes are a subtype of multi-word units. They are considered to be an object of phraseology, since their frequency and fixedness have been confirmed by corpus analysis. 2. There are variations in the degree of fixedness of multi-word lexemes. The analysis of collocation strength between the elements of multi-word lexemes and of deviations in morphological paradigm indicates that the degree of fixedness of multi-word lexemes is largely determined by their composition. 3. The context of multi-word lexemes is characterized by stability or variability. The context of more stable multi-word lexemes is variable, which determines their greater autonomy. Less stable multi-word lexemes that occur in... [to full text] / Darbo objektas yra lietuvių kalbos samplaikos, apibrėžiamos kaip dvižodžiai ar ilgesni iš kaitomų ir nekaitomų žodžių sudaryti stabilieji junginiai, sudarantys vientisos reikšmės leksinį vienetą, kuris dažniausiai vartojamas nesavarankiškos (tarnybinės) kalbos dalies funkcija. Disertacijos tyrimo tikslas – ištirti lietuvių kalbos samplaikų, kaip leksinio vieneto, pasižyminčio formos ir turinio stabilumu, autonomiškumą. Darbo šaltiniai: neanotuotas Dabartinės lietuvių kalbos tekstynas, morfologiškai anotuotas lietuvių kalbos tekstynas ir lygiagretusis vokiečių–lietuvių kalbų tekstynas. Darbo metodai: aprašomasis metodas, tekstynų lingvistikos metodas, statistiniai metodai, gretinamasis metodas. Ginamieji teiginiai: 1. Remiantis išplėstąja frazeologijos samprata, samplaikos yra sustabarėjusių kalbos vienetų tipas, laikomas frazeologijos objektu nuo tada, kai tekstynų analize įrodytas šių junginių dažnumas ir vartojimo pastovumas. 2. Samplaikų stabilumas yra nevienodas. Samplaikų dėmenų traukos įverčio ir morfologinės paradigmos nuokrypio tyrimas rodo, kad samplaikų stabilumo laipsnį lemia samplaikų sandara. 3. Samplaikų kontekstui būdingas stabilumas arba kintamumas. Stabilesnių samplaikų kontekstas kintamas, todėl jos yra autonomiškesnės. Mažesniu stabilumu pasižyminčios samplaikos, kurių kontekstas labiau apibrėžtas, yra ne tokios autonomiškos. 4. Autonomiškesnės samplaikos labiau linkusios būti vertimo vienetais nei mažiau autonomiškos. Kuo samplaika autonomiškesnė, tuo... [toliau žr. visą tekstą]

Arguments have been made for dimensional models over categorical for the classification of personality disorder, and for the five-factor model (FFM) in particular. A criticism of the FFM of personality disorder is the absence of measures designed to assess pathological personality. Several measures have been developed based on the FFM to assess the maladaptive personality traits included within existing personality disorders. One such example is the Five-Factor Obsessive-Compulsive Inventory (FFOCI). The current study applied item response theory analyses (IRT) to test whether scales of the FFOCI are extreme variants of respective FFM facet scales. It was predicted that both the height and slope of the item-response curves would differ for the conscientiousness-based scales, due to the bias towards assessing high conscientiousness as adaptive in general personality inventories (such as Goldberg’s International Personality Item Pool; IPIP). Alternatively, the remaining FFOCI scales and their IPIP counterparts were predicted to demonstrate no significant differences in IRCs across theta. Nine hundred and seventy-two adults each completed the FFOCI and the IPIP, including 377 undergraduate students and 595 participants recruited online. A portion of the results supported the hypotheses, with select exceptions. Fastidiousness and Workaholism demonstrated the expected trends, with the FFOCI providing higher levels of fidelity at the higher end of theta, and the IPIP demonstrating superior coverage at the lower end of theta. Other conscientiousness scales failed to demonstrate the expected differences at a statistically significant level. In this context, the suitability of IRT in the analysis of rationally-derived, polytomous scales is explored.

Emotional intelligence (EI) in organisations has grown immensely over the past two decades. Considerable research regarding this concept and the advantages it poses for the individual as well as the organisation has been conducted; however, one aspect that has not been explored sufficiently is the extent to which EI can be viewed as a culturally relevant concept. The presumption that emotions can be explained in the same way across different culture cannot be made; therefore measuring EI across cultures becomes important and challenging. Language can be viewed as a vehicle of culture, and emotions are shaped by the language spoken in the specific culture. A quantitative research design was used in this study. The sample consisted of mid-level miners from the Gauteng and North West Province (N = 357). Stratified sampling was used to include the West-Germanic (English and Afrikaans; n = 158) and Sotho group (North Sotho, South Sotho, and Setswana; n = 199). Questionnaires were distributed amongst the participants from the different mines, were completed within a set time, and collected immediately afterwards. The first objective of the study was to determine whether the Greek Emotional Intelligence Scale (GEIS) is a reliable test when measuring West-Germanic (English and Afrikaans) and Sotho (Northern Sotho, Southern Sotho, and Setswana) languages. A four-factor model on the combined sample as well as the two language groups was tested. The four factor model of the West-Germanic group showed poor alphas. (Expression and Recognition of Emotions = 0.66; Caring and Empathy = 0.63; Control of Emotions = 0.80 and Use of Emotions to Facilitate Thinking = 0.62.) Several items from the expression and recognition scale cross-loaded on the other three factors, and it was decided to test a three-factor model. The three factor model indicated the best goodness-of-fit indices and showed acceptable alpha coefficients (Use of Emotion to Facilitate Thinking = 0.83; Caring and Empathy = 0.83 and Control of Emotions = 0.77). The second objective was to determine if the Greek Emotional Intelligence Scale is an equivalent measuring instrument when measuring the West-Germanic (English and Afrikaans) and Sotho (Northern Sotho, Southern Sotho, and Setswana) languages. Goodness-of-fit was tested on the total population as well as the two language family groups. The four factors are Expression and Recognition of Emotions, Caring and Empathy, Control of Emotions and Use of Emotions. The model indices (GFI, CFI and RMSEA) were satisfactory on the total population as well as the Sotho groups, but there were problems noted when testing the goodness-of-fit for the West- Germanic language group. It was therefore decided to test a three factor model (Use of Emotions, Caring and Empathy and Control of Emotions). These problems could possibly be explained by the cultural differences between the two language groups. The final research objective was to investigate whether the items of the Greek Emotional Intelligence Scale are unbiased when measuring West-Germanic (English and Afrikaans) and Sotho (Northern Sotho, Southern Sotho, and Setswana) languages. Firstly, ANOVAS were produced to determine the mean differences between the groups. There weren’t many differences, indicating none or little biasness between the groups. Then, the uniform and non-uniform biasness was tested by means of Ordinal Logistic Regression to asses Differential Item Functioning. The majority of the items did not have both uniform and non-uniform biasness. The few that did however, (41, 37, 36, 14 and 18) can be explained by the different ways in which cultures interpret emotions as proven in the literature. Recommendations were made for future research. / Thesis (MCom (Industrial Psychology))--North-West University, Potchefstroom Campus, 2013

Emotional intelligence (EI) in organisations has grown immensely over the past two decades. Considerable research regarding this concept and the advantages it poses for the individual as well as the organisation has been conducted; however, one aspect that has not been explored sufficiently is the extent to which EI can be viewed as a culturally relevant concept. The presumption that emotions can be explained in the same way across different culture cannot be made; therefore measuring EI across cultures becomes important and challenging. Language can be viewed as a vehicle of culture, and emotions are shaped by the language spoken in the specific culture. A quantitative research design was used in this study. The sample consisted of mid-level miners from the Gauteng and North West Province (N = 357). Stratified sampling was used to include the West-Germanic (English and Afrikaans; n = 158) and Sotho group (North Sotho, South Sotho, and Setswana; n = 199). Questionnaires were distributed amongst the participants from the different mines, were completed within a set time, and collected immediately afterwards. The first objective of the study was to determine whether the Greek Emotional Intelligence Scale (GEIS) is a reliable test when measuring West-Germanic (English and Afrikaans) and Sotho (Northern Sotho, Southern Sotho, and Setswana) languages. A four-factor model on the combined sample as well as the two language groups was tested. The four factor model of the West-Germanic group showed poor alphas. (Expression and Recognition of Emotions = 0.66; Caring and Empathy = 0.63; Control of Emotions = 0.80 and Use of Emotions to Facilitate Thinking = 0.62.) Several items from the expression and recognition scale cross-loaded on the other three factors, and it was decided to test a three-factor model. The three factor model indicated the best goodness-of-fit indices and showed acceptable alpha coefficients (Use of Emotion to Facilitate Thinking = 0.83; Caring and Empathy = 0.83 and Control of Emotions = 0.77). The second objective was to determine if the Greek Emotional Intelligence Scale is an equivalent measuring instrument when measuring the West-Germanic (English and Afrikaans) and Sotho (Northern Sotho, Southern Sotho, and Setswana) languages. Goodness-of-fit was tested on the total population as well as the two language family groups. The four factors are Expression and Recognition of Emotions, Caring and Empathy, Control of Emotions and Use of Emotions. The model indices (GFI, CFI and RMSEA) were satisfactory on the total population as well as the Sotho groups, but there were problems noted when testing the goodness-of-fit for the West- Germanic language group. It was therefore decided to test a three factor model (Use of Emotions, Caring and Empathy and Control of Emotions). These problems could possibly be explained by the cultural differences between the two language groups. The final research objective was to investigate whether the items of the Greek Emotional Intelligence Scale are unbiased when measuring West-Germanic (English and Afrikaans) and Sotho (Northern Sotho, Southern Sotho, and Setswana) languages. Firstly, ANOVAS were produced to determine the mean differences between the groups. There weren’t many differences, indicating none or little biasness between the groups. Then, the uniform and non-uniform biasness was tested by means of Ordinal Logistic Regression to asses Differential Item Functioning. The majority of the items did not have both uniform and non-uniform biasness. The few that did however, (41, 37, 36, 14 and 18) can be explained by the different ways in which cultures interpret emotions as proven in the literature. Recommendations were made for future research. / Thesis (MCom (Industrial Psychology))--North-West University, Potchefstroom Campus, 2013

Despite the importance of anxiety measuring tools, there is no published data on the factor analytic structure of the Multidimensional Anxiety Scale for Children (MASC) in South African adolescents. The present study was an attempt to examine the factor structure of the MASC in South African adolescents, the factor structure equivalence for boys and girls and the correlation between MASC scores and scores on the Child Trauma Questionnaire (CTQ), Child PTSD Checklist Score, and the Beck Depression Inventory (BDI) to establish whether the MASC distinguishes between anxiety and other constructs. Available literature indicates that the MASC is invariant across gender and age and it shows excellent internal reliability and test-retest reliability (March Parker, Sullivan, Stallings & Comers, 1997). The MASC appears to measure separate dimensions of anxiety, which in turn makes it ideally suited to discriminate patterns of anxiety in children with anxiety disorders (Rynn et al., 2005). The MASC also correlates well with other measures of anxiety (Revised Children's Manifest Anxiety Scale [RCMAS] and Screen of Child Anxiety Related Emotional Disorders [SCARED]), less so with measures of depression (Children's Depression Inventory [CDI:]) and not at all with measures of disruptive behaviour (March et al., 1997; Muris, Merckelbach, Ollendick & King, 2002). Several studies across the world have confirmed the four-factor structure of the MASC and found its subscales to be reliable in several studies across the world (Olason, Sighvatsson & Smari, 2004; Rynn et al., 2005). A sample of 1078 grade 10 adolescents was selected to participate in this study. The adolescents were from nine different schools, representative of the socio-economic status and ethnic diversity of the region in the Cape Town metropole (South Africa). Principal Components Confirmatory Factor Analysis was conducted on MASC scores using a varimax rotation. Item bias analysis were used to determine gender equivalence and Pearson's correlation statistics were used to explore the correlation of MASC scores to CTQ, BDI, and Child PTSD Checklist scores. The results of the study confirm the MASC four-factor structure and its subscales were found to be reliable. The MASC performed the best out of four scales measuring anxiety or depression. Analysis showed that the four-factor structure applies equally well for males and females. Younger adolescents scored higher than older adolescents on the MASC total scale and no differences on the MASC total scale were found when comparisons of race were made. Item bias analysis showed no statistically or practically significant eta-squared (IJ') value, indicating no gender bias. In general, results in this sample show that the characteristics of the MASC are similar to the original factor structure found by March et al. (1997). The MASC appears to measure separate dimensions of anxiety, which in turn should make it ideally suited to discriminate patterns of anxiety in subgroups of children with anxiety disorders. It can be concluded that the MASC shows to be a valid and reliable measure of anxiety for South African adolescents. It can be recommended that the MASC is a clinically useful and reliable self-report scale for assessing anxiety in children and adolescents. / Thesis (M.A. (Clinical Psychology))--North-West University, Potchefstroom Campus, 2007.

In an ever-changing world, people are constantly faced with the challenge of simultaneously managing multiple roles in their work as well as their home-sphere. It therefore becomes increasingly important to maintain a balance in these two life spheres. Unfortunately, a gap exists between the positive and negative side of work-home balance as most research focuses on the negative side. Recently, a much needed instrument was develop in the Netherlands, namely the Survey Work-Home Interaction - Nijmegen (SWING), which measures both the direction of influence (work→home and vice versa) and the quality of influence (negative vs. positive). The objectives of this study were to validate the Survey Work-Home Interaction - Nijmegen (SWING) for workers of the earthmoving equipment industry in a South African context, to determine its construct equivalence and bias for different language groups, and to determine differences regarding work-home interaction between different demographic groups. A cross-sectional survey design was used. Random samples (n = 330) were taken of workers in the earthmoving equipment industry across South Africa. The SWING and a biographical questionnaire were administered. Item bias analyses, exploratory factor analysis, Cronbach alpha coefficients, MANOVAs, ANOVAs and T-tests were used to analyse the data. Exploratory factor analysis showed that the SWING consists of four factors, namely Negative Work-Home Interference, Negative Home-Work Interference, Positive Work-Home Interference and Positive Home-Work Interference. All four factors showed acceptable internal consistencies. No evidence was found for uniform or non-uniform bias of the items of the SWING for different language groups. Exploratory factor analysis with target rotations confirmed the construct equivalence of the work-home interface construct. There were also no differences regarding work-home interaction between different demographic groups, except for a practically significant difference (medium effect) between males and females with respect to negative Work-Home Interaction levels. Recommendations were made for further research. / Thesis (M.Com. (Industrial Psychology))--North-West University, Potchefstroom Campus, 2005.

Thesis (Ph.D. (Education))--North-West University, Potchefstroom Campus, 2008

Thesis (Ph.D. (Education))--North-West University, Potchefstroom Campus, 2008

The statistical practice of equating is needed when scores on different versions of the same standardized test are to be compared. This thesis constitutes four contributions to the observed-score equating framework kernel equating. Paper I introduces the open source R package kequate which enables the equating of observed scores using the kernel method of test equating in all common equating designs. The package is designed for ease of use and integrates well with other packages. The equating methods non-equivalent groups with covariates and item response theory observed-score kernel equating are currently not available in any other software package. In paper II an alternative bandwidth selection method for the kernel method of test equating is proposed. The new method is designed for usage with non-smooth data such as when using the observed data directly, without pre-smoothing. In previously used bandwidth selection methods, the variability from the bandwidth selection was disregarded when calculating the asymptotic standard errors. Here, the bandwidth selection is accounted for and updated asymptotic standard error derivations are provided. Item response theory observed-score kernel equating for the non-equivalent groups with anchor test design is introduced in paper III. Multivariate observed-score kernel equating functions are defined and their asymptotic covariance matrices are derived. An empirical example in the form of a standardized achievement test is used and the item response theory methods are compared to previously used log-linear methods. In paper IV, Wald tests for equating differences in item response theory observed-score kernel equating are conducted using the results from paper III. Simulations are performed to evaluate the empirical significance level and power under different settings, showing that the Wald test is more powerful than the Hommel multiple hypothesis testing method. Data from a psychometric licensure test and a standardized achievement test are used to exemplify the hypothesis testing procedure. The results show that using the Wald test can provide different conclusions to using the Hommel procedure.

This study explores the relationship between students’ missing responses on a large-scale assessment and their cognitive skill profiles and characteristics. Data from the 48 multiple-choice items on the 2006 Ontario Secondary School Literacy Test (OSSLT), a high school graduation requirement, were analyzed using the item response theory (IRT) three-parameter logistic model and the Reduced Reparameterized Unified Model, a Cognitive Diagnostic Model. Missing responses were analyzed by item and by student. Item-level analyses examined the relationships among item difficulty, item order, literacy skills targeted by the item, the cognitive skills required by the item, the percent of students not answering the item, and other features of the item. Student-level analyses examined the relationships among students’ missing responses, overall performance, cognitive skill mastery profiles, and characteristics such as gender and home language. Most students answered most items: no item was answered by fewer than 98.8% of the students and 95.5% of students had 0 missing responses, 3.2% had 1 missing response, and only 1.3% had more than 1 missing responses). However, whether students responded to items was related to the student’s characteristics, including gender, whether the student had an individual education plan and language spoken at home, and to the item’s characteristics such as item difficulty and the cognitive skills required to answer the item. Unlike in previous studies of large-scale assessments, the missing response rates were not higher for multiple-choice items appearing later in the timed sections. Instead, the first two items in some sections had higher missing response rates. Examination of the student-level missing response rates, however, showed that when students had high numbers of missing responses, these often represented failures to complete a section of the test. Also, if nonresponse was concentrated in items that required particular skills, the accuracy of the estimates for those skills was lower than for other skills. The results of this study have implications for test designers who seek to improve provincial large-scale assessments, and for teachers who seek to help students improve their cognitive skills and develop test taking strategies.