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All Outputs (11)

The impact of an extreme observation in a paired samples design (2017)
Journal Article
Derrick, B., Broad, A., Toher, D., & White, P. (2017). The impact of an extreme observation in a paired samples design

The effect of systematically altering the value of a single observation within a paired differences design is considered. A paradox is observed for the paired samples t-test, where increasing the value of an observation in the direction of the true m... Read More about The impact of an extreme observation in a paired samples design.

Are you better? A multi-centre study of patient-defined recovery from Complex Regional Pain Syndrome (2017)
Journal Article
Harden, R. N., Llewellyn, A., McCabe, C., Hibberd, Y., White, P., Davies, L., …Moskovitz, P. (2018). Are you better? A multi-centre study of patient-defined recovery from Complex Regional Pain Syndrome. European Journal of Pain, 22(3), 551-564. https://doi.org/10.1002/ejp.1138

© 2017 European Pain Federation - EFIC® Background: Complex Regional Pain Syndrome (CRPS) symptoms can significantly differ between patients, fluctuate over time, disappear or persist. This leads to problems in defining recovery and in evaluating the... Read More about Are you better? A multi-centre study of patient-defined recovery from Complex Regional Pain Syndrome.

A study protocol of the effectiveness of PEGASUS: A multi-centred study comparing an intervention to promote shared decision making about breast reconstruction with treatment as usual (2017)
Journal Article
Harcourt, D., Paraskeva, N., White, P., Powell, J., & Clarke, A. (2017). A study protocol of the effectiveness of PEGASUS: A multi-centred study comparing an intervention to promote shared decision making about breast reconstruction with treatment as usual. BMC Medical Informatics and Decision Making, 17(1), 143. https://doi.org/10.1186/s12911-017-0543-0

© 2017 The Author(s). Background: Increasingly, women elect breast reconstruction after mastectomy. However, their expectations of surgery are often not met, and dissatisfaction with outcome and ongoing psychosocial concerns and distress are common.... Read More about A study protocol of the effectiveness of PEGASUS: A multi-centred study comparing an intervention to promote shared decision making about breast reconstruction with treatment as usual.

Cluster-randomized controlled trial evaluating the effectiveness of computer-assisted intervention delivered by educators for children with speech sound disorders (2017)
Journal Article
Howland, C., McLeod, S., Baker, E., McCormack, J., Wren, Y., Roulstone, S., …White, P. (2017). Cluster-randomized controlled trial evaluating the effectiveness of computer-assisted intervention delivered by educators for children with speech sound disorders. Journal of Speech, Language, and Hearing Research, 60(7), 1891-1910. https://doi.org/10.1044/2017_JSLHR-S-16-0385

© 2017 American Speech-Language-Hearing Association. Purpose: The aim was to evaluate the effectiveness of computer-assisted input-based intervention for children with speech sound disorders (SSD). Method: The Sound Start Study was a cluster-randomiz... Read More about Cluster-randomized controlled trial evaluating the effectiveness of computer-assisted intervention delivered by educators for children with speech sound disorders.

Test statistics for the comparison of means for two samples that include both paired and independent observations (2017)
Journal Article
Derrick, B., Russ, B., Toher, D., & White, P. (2017). Test statistics for the comparison of means for two samples that include both paired and independent observations. Journal of modern applied statistical methods : JMASM, 16(1), 137-157. https://doi.org/10.22237/jmasm/1493597280

©2017 JMASM, Inc. Standard approaches for analyzing the difference in two means, where partially overlapping samples are present, are less than desirable. Here are introduced two test statistics, making reference to the t-distribution. It is shown th... Read More about Test statistics for the comparison of means for two samples that include both paired and independent observations.

How to compare the means of two samples that include paired observations and independent observations: A companion to Derrick, Russ, Toher and White (2017) (2017)
Journal Article
Derrick, B., Toher, D., & White, P. (2017). How to compare the means of two samples that include paired observations and independent observations: A companion to Derrick, Russ, Toher and White (2017). Quantitative Methods for Psychology, 13(2), 120-126. https://doi.org/10.20982/tqmp.13.2.p120

Standard approaches for comparing the means of two samples, comprising both paired observations and independent observations, involve the discarding of valuable information. An alternative test which uses all of the available data, is the partially o... Read More about How to compare the means of two samples that include paired observations and independent observations: A companion to Derrick, Russ, Toher and White (2017).

A comparison of analytical methods for the two group pre- post design (2017)
Presentation / Conference
Allis, V., & White, P. (2017, April). A comparison of analytical methods for the two group pre- post design. Poster presented at UWE Student Conference, Bristol, England

Simulation demonstrates that for a two group randomized design ANCOVA is more powerful than the gain score approach For ANCOVA with an interaction term the model with pre scores X as a covariate is more powerful than the model with X + Y as the co... Read More about A comparison of analytical methods for the two group pre- post design.

Protocol for a randomized, double blind, placebo controlled, crossover trial of Melatonin for treatment of Nocturia in adults with Multiple Sclerosis (MeNiMS) (2017)
Journal Article
Delgado, D., Canham, L., Cotterill, N., Cottrell, D., Drake, M. J., Inglis, K., …White, P. (2017). Protocol for a randomized, double blind, placebo controlled, crossover trial of Melatonin for treatment of Nocturia in adults with Multiple Sclerosis (MeNiMS). BMC Neurology, 17(1), https://doi.org/10.1186/s12883-017-0845-y

© 2017 The Author(s). Background: Nocturia (the symptom of needing to wake up to pass urine) is common in progressive Multiple Sclerosis (MS) patients. Moderate-to-severe nocturia affects quality of life, can exacerbate fatigue and may affect capacit... Read More about Protocol for a randomized, double blind, placebo controlled, crossover trial of Melatonin for treatment of Nocturia in adults with Multiple Sclerosis (MeNiMS).

A systematic review of patient-reported outcome measures used in adult burn research (2017)
Journal Article
Pleat, J., Griffiths, C., Guest, E., White, P., Gaskin, E., Rumsey, N., & Harcourt, D. (2017). A systematic review of patient-reported outcome measures used in adult burn research. Journal of Burn Care and Research, 38(2), e521-e541. https://doi.org/10.1097/BCR.0000000000000474

Copyright © 2016 by the American Burn Association. Patient-reported outcome measures (PROMs) are vital for evaluating patient needs and therapeutic progress. This review aimed to identify the PROMs used in adult burn care and establish their quality.... Read More about A systematic review of patient-reported outcome measures used in adult burn research.