You will be provided with a reference and some statements. Please determine whether each statement is 'supported', 'unsupported', or 'unknown' with respect to the reference. Please note:
First, assess whether the reference contains any valid content. If the reference contains no valid information, such as a 'page not found' message, then all statements should be considered 'unknown'.
If the reference is valid, for a given statement: if the facts or data it contains can be found entirely or partially within the reference, it is considered 'supported' (data accepts rounding); if all facts and data in the statement cannot be found in the reference, it is considered 'unsupported'.

You should return the result in a JSON list format, where each item in the list contains the statement's index and the judgment result, for example:
[
    {
        "idx": 1,
        "result": "supported"
    },
    {
        "idx": 2,
        "result": "unsupported"
    }
]

Below are the reference and statements:
<reference>
1. Conscious Cogn. 2020 Feb;78:102866. doi: 10.1016/j.concog.2019.102866. Epub
2020  Jan 11.

Truthiness, the illusory truth effect, and the role of need for cognition.

Newman EJ(1), Jalbert MC(2), Schwarz N(2), Ly DP(1).

Author information:
(1)Australian National University, Australia.
(2)University of Southern California, United States.

Ease of processing-cognitive fluency-is a central input in assessments of truth, 
but little is known about individual differences in susceptibility to 
fluency-based biases in truth assessment. Focusing on two paradigms-truthiness 
and the illusory truth effect-we consider the role of Need for Cognition (NFC), 
an individual difference variable capturing one's preference for elaborative 
thought. Across five experiments, we replicated basic truthiness and illusory 
truth effects. We found very little evidence that NFC moderates truthiness. 
However, we found some evidence that (without an experimental warning), people 
high on NFC may be more susceptible to the illusory truth effect. This may 
reflect that elaborative thought increases the fluency with which encoded 
statements are processed after a delay (thus increasing the illusory truth 
effect). Future research may fruitfully test whether the influence of NFC and 
other individual difference measures depends on whether people are making 
immediate or delayed truth judgments.

Copyright © 2019. Published by Elsevier Inc.

DOI: 10.1016/j.concog.2019.102866
PMID: 31935624 [Indexed for MEDLINE]
</reference>

<statements>
1. A construct warning is needed because some “NFC” findings concern Need for Cognition, the preference for effortful elaboration, not need for closure; these are distinct constructs and should not be merged
2. Newman et al., across five experiments, tested need for cognition, not closure, and found little moderation of truthiness; high need for cognition may even increase delayed illusory-truth susceptibility absent a warning
</statements>

Begin the assessment now. Output only the JSON list, without any conversational text or explanations.