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Global Health Econ Sustain                                   Clinician’s attitude toward health extension program



            the response rates for each item were examined using mean   Cronbach’s alpha coefficient and was tested for both the
            and median summaries. Two statistical models were used:   subscales/factors which emerged from item reduction
            factor analysis to determine latent variables and linear   and for the attitude scale items as a whole.
            regression analysis to determine associated factors. The   (b)  Outcome variables
            attitude item rating scale had to be converted to run factor      A total of 54-item questions were used to derive the
            analysis. As a result, the attitude rating scale was recoded   number of latent variables produced using EFA, which
            into two scales to align with the knowledge scales. To   were used to determine the outcome variables. Three
            demonstrate incorrect perspectives, responses with neutral,   outcome variables—the clinicians’ perceived attitude
            disagree, and strongly disagree were changed to zero and   toward the skill of HEWs (F1), clinicians’ knowledge
            denoted as “disagree;” conversely, responses with agree   towards HEP activities (F2), and clinicians’ perceived
            and strongly agree were changed to one and denoted as   attitude towards the impact of HEP (F3) were created
            “agree.” Items were normally distributed, and due to a lack   through the use of EFA. Predicted continuous values
            of standards, each item question in the latent variable was   were generated for each latent variable, and each factor
            added up to create composite scores ranging from 0 to 54.   underwent a linear regression analysis.
            A higher score denotes that the clinician is knowledgeable   (c)  Linear regression analysis
            or has a positive attitude toward HEP. The mean and      Predicted values for each constructed factor with
            median values of each latent variable were calculated. The   enough items were  generated. However,  a factor
            central message of the item questions served as the basis   with inadequate items (≤2) was excluded from
            for labeling the latent variables. Latent variables were   further analysis (Yong & Pearce, 2013). An analysis
                                                                  of  variance  (ANOVA)  was  used  to  determine  the
            converted into dichotomous variable types using the mean   level of association between dependent variables
            as a cutoff point, with values above the mean labeled as   and predictors. Eleven independent variables,
            “good knowledge” or “favorable attitude” and scores below   of which two of them (age and experience) were
            the mean labeled as “poor knowledge” or “unfavorable   continuous-discrete, were included in the regression
            attitude.” The factor analysis and linear regression are   model. Categorical variables such as sex, marital
            described as follows:
                                                                  status, educational level, qualification, facility type,
            (a)  Factor analysis                                  involvement in HEP outreach, involvement in HEP
               The  similarity  between  items  was  assessed  using  the   review meetings, involvement in HEP home visits,
               average inter-item correlation, and a diagonal correlation   and  willingness  to  work  in  HEP  were  included.
               matrix was calculated to check communalities. Sampling   A  normality  test  was  run  before  multiple  linear
               adequacy  for  both  individual  items  and  factors  was   regression was carried out. Multicollinearity was
               measured using the Kaiser–Meyer–Olkin (KMO)        checked using variance inflated factor (VIF), where
               test, with values >0.6 considered adequate (Robson &   VIF >10% indicates the presence of collinearity.
               Haddad, 2012; VanSickle et al., 2016). Before performing   An overall goodness-of-fit test was measured using
               the exploratory factor analysis (EFA), three criteria were   adjusted R-squared (r ). A variable with P < 0.25 in
                                                                                    2
               checked: sample size,  factorability of  the  correlation   the one-way ANOVA test was considered statistically
               matrix,  and  KMO  measure  of  sampling  adequacy  or   significant and re-entered into the multivariant linear
               Bartlett’s test of sphericity. EFA was then applied, and   regression model to exclude confounders. In the
               the  number  of  factors  extracted  from  item  questions   multivariant linear regression model, a P < 0.05 at a
               was determined using the Eigenvalues matrix, where a   95% CI was considered statistically significant.
               value >1 was considered to construct factors. A scree
               plot was created to determine the relative importance of   3. Results
               retained factors by examining significant breaks among
               dotted lines in the graph (Ul Hadia et al., 2016). The   3.1. Characteristics of respondents
               total variance was used to explain factors removed due   A total of 1210 clinicians were interviewed; details are
               to significant breaks. Factor loading was carried out,   shown in Table 1. Over half (53.4%) of the population was
               and items with weak loadings (<0.4) or cross-loading   in the 25- to 29-year-old age range, with a mean age of
               on several factors were deleted (Winters et al., 2016).   28.3 (SD = 5.4) years. Male respondents comprised 50.8%,
               Interpretation of factors was made after factor rotation   and more than half (51.8%) spent the first 15  years of
               to create cluster variables. The orthogonal varimax-  their lives growing up in rural areas. Married respondents
               type rotation method was applied to summarize the   account for 621 (51.3%), with the majority (42.8%) of them
               dimension of the scale (Yong & Pearce, 2013). The   meeting the qualification of clinical nurses. The majority
               measure of internal reliability was assessed using   of clinicians (53.1%) had <5 years of experience, with an


            Volume 1 Issue 1 (2023)                         4                        https://doi.org/10.36922/ghes.0887
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