HCM with Ordered Logit (more than one indicator)
Posted: 06 Apr 2022, 01:55
Dear Sir,
I have 2 questions regarding the HCM with OL.
For estimating HCM with OL, I have 4 attitudinal factors such as Perceive, Attitude, Subjective Norms(SN) & Environmental Concerns(EC). Each of these attitudinal factors has 4-5 different attitudinal statements (for example the Attitudinal Factor 'Perceive' has 4 different statements such as AQ1PBC_r1 till AQ1PBC_r4 and so on) and each of these has been measured by 5 points Likert Scale (Strongly disagree to Strongly agree).
While using the example from the apollo website, I have found out the apollo drug choice dataset used for the estimation has only 1 attitudinal statement for each of the attitudinal factors.
Q1. What changes do I need to make in my ordered logit settings in this case?
Here is the piece of the code :
### Likelihood of indicators
ol_settings1 = list(outcomeOrdered = AQ1PBC_r1,
V = zeta_perceive*LV,
tau = list(tau_perceive_1, tau_perceive_2, tau_perceive_3, tau_perceive_4),
rows = (Task==1),
componentName = "indic_perceive")
ol_settings2 = list(outcomeOrdered = AQ2ATTITUDE_r1,
V = zeta_attitude*LV,
tau = list(tau_attitude_1, tau_attitude_2,tau_attitude_3,tau_attitude_4),
rows = (Task==1),
componentName = "indic_attitude")
ol_settings3 = list(outcomeOrdered = AQ3SN_r1,
V = zeta_SN*LV,
tau = list(tau_SN_1, tau_SN_2, tau_SN_3, tau_SN_4),
rows = (Task==1),
componentName = "indic_SN")
ol_settings4 = list(outcomeOrdered = AQ5EC_r1,
V = zeta_EC*LV,
tau = list(tau_EC_1, tau_EC_2, tau_EC_3, tau_EC_4),
rows = (Task==1),
componentName = "indic_EC")
Q2. While doing the estimation, the estimates result in Zeta parameters which have +/- signs that indicate the impact of the attitudinal factor on the measurement model, but what do the +/- signs of the tau_quality_1, tau_quality_2, tau_quality_3, tau_quality_4 other tau's indicates?
Your suggestions are highly appreciated.
I have 2 questions regarding the HCM with OL.
For estimating HCM with OL, I have 4 attitudinal factors such as Perceive, Attitude, Subjective Norms(SN) & Environmental Concerns(EC). Each of these attitudinal factors has 4-5 different attitudinal statements (for example the Attitudinal Factor 'Perceive' has 4 different statements such as AQ1PBC_r1 till AQ1PBC_r4 and so on) and each of these has been measured by 5 points Likert Scale (Strongly disagree to Strongly agree).
While using the example from the apollo website, I have found out the apollo drug choice dataset used for the estimation has only 1 attitudinal statement for each of the attitudinal factors.
Q1. What changes do I need to make in my ordered logit settings in this case?
Here is the piece of the code :
### Likelihood of indicators
ol_settings1 = list(outcomeOrdered = AQ1PBC_r1,
V = zeta_perceive*LV,
tau = list(tau_perceive_1, tau_perceive_2, tau_perceive_3, tau_perceive_4),
rows = (Task==1),
componentName = "indic_perceive")
ol_settings2 = list(outcomeOrdered = AQ2ATTITUDE_r1,
V = zeta_attitude*LV,
tau = list(tau_attitude_1, tau_attitude_2,tau_attitude_3,tau_attitude_4),
rows = (Task==1),
componentName = "indic_attitude")
ol_settings3 = list(outcomeOrdered = AQ3SN_r1,
V = zeta_SN*LV,
tau = list(tau_SN_1, tau_SN_2, tau_SN_3, tau_SN_4),
rows = (Task==1),
componentName = "indic_SN")
ol_settings4 = list(outcomeOrdered = AQ5EC_r1,
V = zeta_EC*LV,
tau = list(tau_EC_1, tau_EC_2, tau_EC_3, tau_EC_4),
rows = (Task==1),
componentName = "indic_EC")
Q2. While doing the estimation, the estimates result in Zeta parameters which have +/- signs that indicate the impact of the attitudinal factor on the measurement model, but what do the +/- signs of the tau_quality_1, tau_quality_2, tau_quality_3, tau_quality_4 other tau's indicates?
Your suggestions are highly appreciated.