I have a data set that is generated from a population survey of a licensed profession in the state. I have a 63% response rate. I am generating demographics (age, gender, race, degree level distributions) and descriptives for age, hours worked etc. How do I generate CIs and statistical significance of these distributions and descriptives to 100% of the population? Can I just weight the cases using (100/63) and not report CIs and statistical significance? These concepts are always talked about in sample survey context. How do I apply them to a population survey with 63% response rate? Does SPSS have a special setting, function or way to do this? Or should I be looking at the data differently. Any help is appreciated.

Thanks! ]]>

I would like to ask some questions regarding the use of SPSS for statistics analysis:

1. In examining the reliability of the measures used in questionaires, do I have to calculate the measures of Independent variables separate from dependent variables, so I have two Cronbach’s alpha scores? or do I need to calculate the measures of both independent and dependent variables in the same time, so I only get one Cronbach’s alpha score?

2. In conducting Exploratory factor analysis using SPSS, I get the output i.e. table of Component matrix and Rotated Component matrix. There are positive and negative values (Scores) of factor loadings in these tables. In selecting the variables that underlying the factors, do I have to consider both [strong]positive and negative values[/strong] of factor loadings? Or do I only look at the highest [strong]positive[/strong] factor loading?

Thank you very much for your help.

Kind regards,

Amie

]]>

Do you have any idea what is wrong?

]]>