Research Publicationshttp://hdl.handle.net/10566/472024-03-29T14:29:19Z2024-03-29T14:29:19ZBayesian jackknife tests with a small number of subsets: application to HERA 21 cm power spectrum upper limitsWilensky, M.JKennedy, FBull, Phttp://hdl.handle.net/10566/91452023-06-27T00:00:53Z2023-01-01T00:00:00ZBayesian jackknife tests with a small number of subsets: application to HERA 21 cm power spectrum upper limits
Wilensky, M.J; Kennedy, F; Bull, P
We present a Bayesian jackknife test for assessing the probability that a data set contains biased subsets, and, if so, which of the subsets are likely to be biased. The test can be used to assess the presence and likely source of statistical tension between different measurements of the same quantities in an automated manner. Under certain broadly applicable assumptions, the test is analytically tractable. We also provide an open-source code, CHIBORG, that performs both analytic and numerical computations of the test on general Gaussian-distributed data. After exploring the information theoretical aspects of the test and its performance with an array of simulations, we apply it to data from the Hydrogen Epoch of Reionization Array (HERA) to assess whether different sub-seasons of observing can justifiably be combined to produce a deeper 21 cm power spectrum upper limit. We find that, with a handful of exceptions, the HERA data in question are statistically consistent and this decision is justified. We conclude by pointing out the wide applicability of this test, including to CMB experiments and the H0 tension.
2023-01-01T00:00:00ZLearning with technology in physiotherapy education: Design, implementation and evaluation of a flipped classroom teaching approachRøe, YngveRowe, MichaelØdegaard, Nina B.http://hdl.handle.net/10566/90222023-06-07T00:00:48Z0219-01-01T00:00:00ZLearning with technology in physiotherapy education: Design, implementation and evaluation of a flipped classroom teaching approach
Røe, Yngve; Rowe, Michael; Ødegaard, Nina B.
The purpose of the study was to describe the design, implementation and evaluation of a flipped
classroom teaching approach in physiotherapy education. The flipped classroom is a blended learning approach in
which students receive digital lectures as homework, while active learning activities are used in the classroom.
Flipped classroom teaching enables a learning environment that aims to develop higher-order cognitive skills. The study design was a historically controlled, prospective, cohort study. An eight week theoretical
course on musculoskeletal disorders was redesigned, moving from a conventional approach to a flipped classroom
model. Pre-class learning material consisted of about 12 h of video lectures and other digital learning resources that
were split up over the duration of the course. In-class activities consisted of seven full-day seminars where students
worked in groups in order to solve problem-based assignments. The assignments were designed to reflect
authentic clinical problems and required critical thinking and reasoning. Outcomes were measured with coursegrades
and compared with historical controls of conventional teaching, using descriptive statistics. Self-perceived
learning outcomes and students’ experiences were also collected in a survey.
0219-01-01T00:00:00ZPrevalence of secondary health conditions and mental status in persons with long-term spinal cord injury in South Africa: Comparison between public and private healthcare sectorsRhoda, AJoseph, CThurston, CNizeyimana, Ehttp://hdl.handle.net/10566/89872023-06-02T00:00:58Z2023-01-01T00:00:00ZPrevalence of secondary health conditions and mental status in persons with long-term spinal cord injury in South Africa: Comparison between public and private healthcare sectors
Rhoda, A; Joseph, C; Thurston, C; Nizeyimana, E
Background: Spinal cord injuries typically result in a range of negative health outcomes and health states, which impacts overall functioning, health and well-being. It remains important to establish the prevalence (burden) of health outcomes to help with the development of optimal treatment strategies. Objectives: To determine the prevalence and treatment rates of secondary health conditions (SHCs) and mental health states in persons with long-term spinal cord injury (SCI) receiving public compared with private healthcare services in South Africa. METHODS: A cross-sectional survey included 200 community-dwelling persons with long-term SCI, 60% with paraplegia, 53% with complete injuries and 156 from the public and 44 from private healthcare sectors. The following modules of the International Spinal Cord Injury (InSCI) community survey were used: (i) demographic and injury characteristics; (ii) SHCs and treatment rates; and (iii) vitality and emotional well-being. All statistical analyses were stratified according to healthcare sector
2023-01-01T00:00:00ZThe role of environmental factors on health conditions, general health and quality of life in persons with spinal cord injuries in South AfricaBezuidenhout, LucianRhoda, AntheaConradsson, David Moulaeehttp://hdl.handle.net/10566/89582023-05-31T00:01:28Z2023-01-01T00:00:00ZThe role of environmental factors on health conditions, general health and quality of life in persons with spinal cord injuries in South Africa
Bezuidenhout, Lucian; Rhoda, Anthea; Conradsson, David Moulaee
The objective was to describe the individual items of the environmental factors
and to investigate the relationship between the environmental factors to health conditions, general
health and quality of life in people with SCI in South Africa. Methods: Two hundred persons with
SCI participated in a cross-sectional survey design. This study formed part of the International
Spinal Cord Injury (InSCI) Community Survey. Four major domains, environmental factors, health
conditions, general health and quality of life of the survey questionnaire responses, were used for
the analysis. Regression models were used to determine the association between the independent
variable, which consisted of the specific environmental factors items, and the dependent variables
comprising health conditions, general health and quality of life. Results: The commonly reported
environmental barriers were public access, lack of short- and long-distance transport and finances.
Environmental factors such as public access (p < 0.001), short- (p < 0.001) and long-distance transport
(p = 0.001), and friends’ (p = 0.003) and colleagues’ (p < 0.001) attitudes and communication (p = 0.042)
were significantly associated with the presence of secondary health conditions. Finances (p = 0.026),
family attitudes (p = 0.037) and communication (p = 0.039) had a significant association with worsened
mental health. Services (p = 0.022) and communication (p = 0.042) were also significantly associated
with decreased general health.
2023-01-01T00:00:00Z