Dear All,
I am using Mini-IPIP Questionnaire which was developed by Donnellan et al. (2006) to check Big Five Personality Traits . I have emailed the author several times but he never reply!!!
I have 2 questions and i appreciate if you can help.
1. Are the questions formative or reflective?
2. Should i reverse code some items which are negative? (as it is personality questionnaire i am not sure to reverse code or not)
I have attached the questionnaire.
Thanks
Hello,
Regarding whether you should reverse code some of the items, yes you will need to. For instance, just looking at two items of the Extraversion scale, if someone indicated that the following item, "Am the life of the party" described them well (and chose a score of "5") and indicated that the item, "Don’t talk a lot" does not describe them well (and chose a score of "1") then this indicates that they are high on Extraversion, but if you did not reverse score the second item, the total Extraversion score would not reflect high Extraversion. In the Appendix of the original article, the authors identify which items should be reverse-coded (marked with an "R" next to the items)...
https://www.researchgate.net/profile/Frederick_Oswald/publication/7014171_The_Mini-IPIP_Scales_Tiny-yet-Effective_Measures_of_the_Big_Five_Factors_of_Personality/links/00b49529d3205d5c29000000/The-Mini-IPIP-Scales-Tiny-yet-Effective-Measures-of-the-Big-Five-Factors-of-Personality.pdf
Good luck.
Article The Mini-IPIP Scales: Tiny-yet-Effective Measures of the Big...
In addition to Adelheid's excellent answer, the questions are generally conceptualized as reflective (i.e., each of the latent Big Five factors "causes" patterns in responses to the items, which are regarded as convenient manifest indicators of those latent factors) as opposed to formative (i.e., questions are meaningfully separate manifest indicators that jointly "cause" the latent Big Five factors that represent the covariation among those indicators).
I have no idea what your first question means. But as for the second: The IPIP is the International Personality Item Pool. It's a rather useful web site that contains items you can use to measure various personality characteristics. Donnellan just used items drawn from their "Big Five" pool. I'm attaching the link for your convenience.
http://ipip.ori.org/MiniIPIPKey.htm
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