mach_cat {catSurv} R Documentation

## Machiavellianism Personality Cat Object

### Description

Cat object containing item parameters for graded response model fit with responses to the 20 item machiavellianism inventory

### Usage

data(mach_cat)


### Format

An object of class Cat of length 1.

### Details

Cat object containing item parameters for graded response model fit with 3020 response profiles collected by Qualtrics in June 2018 and 12299 response profiles collected by the Open Source Psychometrics Project in 2012.

See Cat-class for details regarding the Cat object structure. See grmCat for details regarding the graded response model.

A normal prior was chosen with mean from the theta estimates from the Qualtrics sample (-0.713) and a standard deviation (1) wide enough to envelope the range of estimated theta values across both samples.

Note that due to how the item parameters were estimated, large, positive values indicate "more" of the latent trait.

Response options are: 5 = Strongly agree, 4 = Somewhat agree, 3 = Neither agree nor disagree, 2 = Somewhat disagree, 1 = Strongly disagree

The wording of the item responses is:

Q1

Never tell anyone the real reason you did something unless it is useful to do so.

Q2

The best way to handle people is to tell them what they want to hear.

Q3

One should take action only when sure it is morally right.

Q4

Most people are basically good and kind.

Q5

It is safest to assume that all people have a vicious streak and it will come out when they are given a chance.

Q6

Honesty is the best policy in all cases.

Q7

There is no excuse for lying to someone else.

Q8

Generally speaking, people won't work hard unless they're forced to do so.

Q9

All in all, it is better to be humble and honest than to be important and dishonest.

Q10

When you ask someone to do something for you, it is best to give the real reasons for wanting it rather than giving reasons which carry more weight.

Q11

Most people who get ahead in the world lead clean, moral lives.

Q12

Anyone who completely trusts anyone else is asking for trouble.

Q13

The biggest difference between most criminals and other people is that the criminals are stupid enough to get caught.

Q14

Most people are brave.

Q15

It is wise to flatter important people.

Q16

It is possible to be good in all respects.

Q17

P.T. Barnum was wrong when he said that there's a sucker born every minute.

Q18

It is hard to get ahead without cutting corners here and there.

Q19

People suffering from incurable diseases should have the choice of being put painlessly to death.

Q20

Most people forget more easily the death of their parents than the loss of their property.

### Source

See https://dataverse.harvard.edu/dataverse/pdsl for the raw YouGov and/or Qualtrics data.

See https://openpsychometrics.org/_rawdata/, maintained by Eric Jorgenson, for the raw Open Source Psychometrics Project data.

### References

Christie, R., F. L. Geis, and D. Berger (1970), Studies in Machiavellianism, New York: Academic Press.

Open Source Psychometrics Project. https://openpsychometrics.org/_rawdata/

Cat-class, grmCat