Measuring Delusional Idcation ‘Schizophrenia Bulletin, Vol 30, No.4, 2008 Appendix PDL-2 ‘This questionnaire is designed to measure beliefs and vivid mental experiences. We believe that they are much more common than has previously been supposed, and that most people have had some such experiences during their lives. Please answer the following questions as honestly as you can, There are no right or wrong answers, and there are no trick questions. Please note that we are NOT interested in experiences people may have had when under the influence of drugs. IT 1S IMPORTANT THAT YOU ANSWER ALL QUESTIONS. For the questions you answer YES 10, we are imerested in: (a) how distressing these beliefs or experiences are {(b) how often you think about them; and (©) how true you believe them to be (On the right hand side of the page we would like you Wo circle the number which corresponds most clasely to how dis- tressing this belief is, how often you think about it. and how much you believe that itis tue. If you answer NO please move on to the nex! question, Example Do you ever feel as if people are Not atall reading your mind ? distressing, Do you ever feel as if you could read other people's minds ? 1017 roy Asam wf‘Schizophrenia Bulletin, Nol. 30, No. 4,200 Peters eal 1) Do you ever feel as if people Notarall Vey ‘seem to drop hints about you or say distpessing distressing, things with a double meaning ? 1 2 3 4 5 “Hardly ever "Think about think about it all the time No YES — 4 2 3 4 5 (Please circle) — Beli y 1 2 3 4 5 2) Do you ever feel as if things in SC ines or on TV were written distressing distressing especially for you? 4 2 3 4 5 Hardly ever Think about NO YES ———p| think abous it all the time 1 2 3 4 5 (please circl ‘Don't believe Believe itis circle) if'stue absolutely true 1 2 3 4 5 3) Do you ever feel as if some Wetetal SSCS ry SY people are not what they seem to distressing distressing be? 1 2 3 4 5 Hardly ever ‘Think about it NO YES ———>| think adoutit all the time | 1 2 3 4 5 (please circle) Doni believe Believe Wis iste absolutely true 1 2 3 4 5 4) Do you ever feel as if you are ‘Nota all — vey) £ being persecuted in some way ? distressing distressing i 1 2 3 4 5 Z Hardly ever Think about ze NO YES ——p| tak about it all the time & 1 2 5 f (please circle) ‘Dont believe Believe itis i its tue absolutly te 3 4 2 3 4 5 2 5) Do you ever feel as if there is a Notatall Ven conspiracy against you ? distressing disresing 8 1 2 3 5 ‘Hardly ever Think about it NO YES ———+ | think about it all he time 1 2 3 4 5 (please circle) Dost believe Believe wis ieseve sbsolutely te 1 2 3 4 5 1018Measuring Delusional leation Schizophrenia Bulletin, Vol. 30, No.4, 2004 6) Do you ever feel as if you are, or [~ Notatall Vey destined to be someone very istessing, distressing. important ? 1 2 3 4 5 Hardly ever ‘Think about it NO YES ——> | think about it all the time 1 2 3 4 5 (please circle) Dost believe Believe is ? it's true absolutely true. _ _ 1 2 3 4 5 7) Do you ever feel that you are a Notatall Vey very special or unusual person ? distressing distressing 1 2 3 4 5 _ Hardly ever Think about it NO YES ——> | bhink about all the time 1 2 3 4 5 is Dot bel Believe (please circle) er haieve wee 1 2 3 4 5 8) Do you ever feel that you are Wot at all ~ Very specially close to God ? distressing, disvessing 1 2.13 4 8 Hardly ever Think about it NO YES ———> | think about it all the time 1 2 4 5 (please circle Dost believe Belew i ene) its true absolutely true 1 2 3 4 5 9) Do you ever think people can Noatall ‘communicate telepathically ? distressing 1 2 3 4 Hird ever NO Yes —— | think about it 1 23 4 (please circle) Doni believe itstve 1 2 3 4 10) Do you ever feel as ifelectrical [~ Notarall vey devices such as computers can dioweasiog istressing influence the way you think ? 1 2 3 5 Hardly ever Think about NO YES ———» | think about it all the time 1 2 3 4 (plese cicle) ~* Dost believe ‘es rue 1 2 3 4 1019Schizophrenia Bulletin, Vol. 30, No. 4, 2004 E Peters eta. 11) Do you ever feel as if you have [~ Notatait vey been chosen by God in some way? | istessing 3 3 ad 1 4 Hardly ever “Think about it NO YES ——+ | think about it al the time 1 2 3 4 5 (please circle) Dont believe Believe Ris ies ve absolutely ue 1 2 3 4 5 12) Do you believe in the power of [~ Notatall vey witchcraft, voodoo or the occult? | istressing iswessing 4 2 3 4 5 a Flardly ever Think about NO YES ——> | thinkabout it all te time 1 2 3 4 5 i Doni bel Believe (please circle) vr believe itis 1 2 3 4 5 13) Are you often worried that your 14) Do you ever feel that you have sinned more than the average person ? NO YES——> (please circle) 15) Do you ever feel that people Nota all vey look at you oddly because of your distressing disressiog appearance ? 1 2 3 4 5 _ Hardly ever ‘Think about it NO YES ———» | think about it all the time 1 2 3 4 5 (please ‘Dont believe Believe it is cise) it's que absolutely true 1020“Measuring Delusional Ideation 16) Do you ever feel as if you had ‘no thoughts in your head at all ? NO YES —> (please circle) ‘Schizoplrenia Bulletin, Vol. 90, No.4, 2004 Notatall very distressing, 4 2 3 4 5 Hardly ever Think about ft ‘think about it all the time 4 2 3 4 5 Doatt believe Believe itis its tue absolutely true 1 2 3 4 5 17) Do you ever feel as if the world is about to end ? NO YES ——> (please circle) 18) Do your thoughts ever fecl alien [~ Notatall vey to you in some way ? 4 2 3 4 5 ever Think about NO YES ———> | think about it all the time 1 2 3 4 5 (please circle) omit believe Believe Ri ies uve absolutely me 1 2 3 4 5 19) Have your thoughts ever been so [~ Notatall Vey vivid that you were worried other disressing people would hear them ? 5 “Think about NO YES ———> all the time 5 circle) Believe it is (please circle) ‘is 1 2 3 4 5 20) Do you ever feel as if your own [~ Notatall Ven thoughts were being echoed back to | istessing you? 1 2 3 4 5 Hardly ever: ‘Think about it NO YES ——» | think about it all the time 1 5 (please circle) Dont believe Believe Ri ies uve absolutely true 1 2 3 4 5 102Schizophrenia Bullein, Vol. 30, No. 4, 2004 E. Peters et al 21) Do you ever feel as if you are a robot of zombie without a will of your own ? NO YES ——> (please circle)