Multivariate Analysis of Covariance (Parametric Test Employed with Interval/Ratio Data)

2020 ◽  
pp. 1527-1535
Author(s):  
David J. Sheskin
Keyword(s):  
Multivariate Analysis ◽  
Analysis Of Covariance ◽  
Parametric Test ◽  
Ratio Data ◽  
Interval Ratio

scholarly journals Physical Activity Patterns in Youth With Intellectual Disabilities

2016 ◽  
Vol 33 (4) ◽  
pp. 374-390 ◽  
Author(s):  
Samantha J. Downs ◽  
Stuart J. Fairclough ◽  
Zoe R. Knowles ◽  
Lynne M. Boddy
Keyword(s):  
Physical Activity ◽  
Multivariate Analysis ◽  
Intellectual Disabilities ◽  
Activity Patterns ◽  
Final Analysis ◽  
Analysis Of Covariance ◽  
Age Group ◽  
Physical Activity Patterns

The aim of this study was to assess the physical activity (PA) patterns of youth with intellectual disabilities (ID). PA was monitored for 7 days in 70 participants, 5–15 years old, using accelerometers. There were 32 participants included in the final analysis. Habitual PA and the number of continuous bouts accrued for a range of bout lengths (5–600 s) for light (LPA), moderate (MPA), and vigorous (VPA) PA were calculated. Multivariate analysis of covariance was used to assess differences in the number of continuous bouts by sex, age, and ID group and between week and weekend days. Participants exhibited short sporadic bursts of activity. The number of continuous bouts decreased as the intensity and duration increased. Few differences in PA patterns were reported by sex, ID group, and age group and between week and weekend days, possibly due to the generally low PA levels in this population.

scholarly journals The Speech “Bamana”: Using the Syllable Repetition Task to Identify Underlying Phonological Deficits in Children With Speech and Language Impairments

2020 ◽  
Vol 63 (7) ◽  
pp. 2229-2244
Author(s):  
Elizabeth Roepke ◽  
Kathryn E. Bower ◽  
Catherine A. Miller ◽  
Françoise Brosseau-Lapré
Keyword(s):  
Multivariate Analysis ◽  
Initial Stress ◽  
Language Disorder ◽  
Speech Sound ◽  
Analysis Of Covariance ◽  
Speech And Language ◽  
Speech Sound Disorder ◽  
Phonological Deficits ◽  
Syllable Repetition ◽  
Repetition Task

Purpose This study compared performance on the Syllable Repetition Task (SRT) by preschoolers with diverse speech and language abilities to identify underlying impairments in speech processes. Method Three groups of 13 children ages 4 and 5 years with (a) typically developing (TD) speech and language, (b) speech sound disorder (SSD), and (c) comorbid developmental language disorder and speech sound disorder (DLD + SSD) completed the SRT. We calculated competence, memory, encoding, and transcoding scores, as well as word-initial stress pattern and vowel accuracy. Results A 3 × 3 (Group × Syllable length) factorial multivariate analysis of covariance revealed group differences for all measures and syllable length differences for memory, transcoding, and competence. There were no interactions between group and syllable length. TD children obtained the highest scores on each measure, though children with DLD + SSD performed similarly to TD children on encoding when vocabulary was included as a covariate. Children with SSD only outperformed children with DLD + SSD on competence and transcoding, and these two groups performed similarly on memory. A separate exploratory analysis using a 3 × 3 multivariate analysis of covariance revealed that children with DLD + SSD were more likely than children in the other groups to produce weak word-initial stress and vowel errors during syllable repetition. Conclusion Children with SSD and DLD + SSD exhibit underlying phonological deficits on the SRT compared to TD children. Results support the claim that memory and encoding are deficits in SSD. In addition, transcoding deficits were identified among children with no known oromotor impairment. Therefore, more research is required to identify the relationship between SRT performance and explicit measures of phonological processing.

One size doesn’t fit all: a uses and gratifications analysis of social media platforms

2020 ◽  
Vol 14 (2) ◽  
pp. 269-284 ◽  
Author(s):  
Mark J. Pelletier ◽  
Alexandra Krallman ◽  
Frank G. Adams ◽  
Tyler Hancock
Keyword(s):  
Social Media ◽  
Multivariate Analysis ◽  
Qualitative Study ◽  
Design Methodology ◽  
Research Study ◽  
Analysis Of Covariance ◽  
Main Study ◽  
Content Type ◽  
Value Propositions ◽  
Social Media Platforms

Purpose This research study aims to investigate consumer usage motivations for three of the top social media platforms today: Facebook, Twitter and Instagram. Additionally, through understanding various platform distinctions, firms can understand which social media platforms consumers prefer to use to co-create with brands online. Design/methodology/approach An exploratory qualitative study is first conducted to understand consumer motivations for using different social media platforms. The main study tests five hypotheses related to consumer usage intentions and social media co-creation behavior across three social media platforms. A survey is conducted with 1,050 social media users with a comparison of mean responses using multivariate analysis of covariance. Findings Results support significant differences between platforms in terms of use and co-creation behaviors. For informational purposes, consumers gravitate toward Twitter. For social purposes, Twitter and Instagram are preferred. Instagram is the primary platform for entertainment motivation as well as co-creating with brands via social media. Surprisingly, Facebook shows the lowest usage intentions and co-creation despite being the largest platform and network most widely used by marketers. Originality/value To the best of the authors’ knowledge, this is one of the first studies to take a multi-platform approach to understanding consumer social media use and co-creation with brands. The results highlight that marketing academics and practitioners must segment the various social media platforms as each offers unique value propositions to consumers.

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