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Table 1 Category labels and stimuli of the brief cocaine- and heroin-aIATs

From: Detecting cocaine use? The autobiographical implicit association test (aIAT) produces false positives in a real-world setting

Items for Attribute A ‘True’:

Items for Attribute B ‘False’:

1

I’m in London

1

I’m climbing a mountain

2

I’m taking a test

2

I’m at the beach

3

I’m in front of a computer

3

I’m playing football

4

I’m reading the screen

4

I’m at a shop

Items for Target A ‘as if you were a cocaine user’:

Items for Target B (negative sentences) ‘as if you were not a cocaine user’:

1

I’ve used cocaine recently

1

I don’t use cocaine

2

I use cocaine

2

I’ve never tried cocaine

3

I’ve snorted cocaine with friends

3

I don’t snort cocaine

4

I snort cocaine

4

I don’t use cocaine with friends

  

Items for Target B (affirmative sentences) ‘as if you abstain from cocaine use’:

  

1

I am cocaine free

  

2

I refuse to use cocaine

  

3

I respect the law on cocaine use

  

4

I keep off cocaine

Items for Target A ‘as if you were a heroin user’:

Items for Target B ‘as if you abstain from heroin use’:

1

I’ve used heroin recently

1

I am heroin free

2

I use heroin

2

I refuse to use heroin

3

I’ve snorted heroin with friends

3

I respect the law on heroin use

4

I snort heroin

4

I keep off heroin