Translate Deenz Delusional Beliefs Scale (DDBS)

Deenz Delusional Beliefs Scale (DDBS)

Delusional beliefs are strongly held beliefs that differ from commonly accepted reality and may persist even when conflicting evidence is available. While unusual beliefs and interpretations can occasionally occur in the general population, persistent or strongly held beliefs may influence how individuals perceive themselves, other people, and the world around them.

The Deenz Delusional Beliefs Scale (DDBS) was developed to measure a broad range of delusion-like beliefs and cognitive experiences. The assessment evaluates suspicious thinking, unusual interpretations of events, beliefs about personal significance, exaggerated self-importance, conviction in one's beliefs, reality testing, and the impact of these beliefs on everyday functioning. Higher scores indicate a greater tendency toward delusion-like beliefs and unusual interpretations of reality. This assessment is intended for educational and research purposes and should not be considered a clinical diagnosis.

Read each statement carefully and answer honestly based on your typical thoughts, beliefs, and experiences. There are no right or wrong answers. Select the response that best represents your usual experience rather than isolated events.

In third part you may skip any question or stop the assessment at any time. For the most accurate results, answer each statement honestly based on your usual experiences over the past several months.

The Deenz Delusional Beliefs Scale (DDBS) consists of three assessment parts.

Part 1: Feelings

Dimensions: Suspicion (4 items), Uncertainty (4 items), Anxiety (4 items), Isolation (4 items)

Total Items: 16

Part 2: Thoughts

Dimensions: Reference (4 items), Grandiosity (4 items), Control (4 items), Conviction (4 items)

Total Items: 16

Part 3: Experiences

Dimensions: Perception (4 items), Certainty (4 items), Reality (4 items), Impact (4 items)

Total Items: 16

Each dimension contains one reverse-scored item.

Raw Score Range: 0–192

Percentage Score:
(Raw Score ÷ 192) × 100

I find it hard to trust people's intentions.

I feel that people may have hidden motives.

I feel uneasy around unfamiliar people.

I generally trust other people's intentions.

I often question what is really happening.

I sometimes doubt my understanding of situations.

I feel uncertain about other people's actions.

I usually feel confident about my understanding of events.

I feel tense without knowing why.

I often feel on guard.

I worry that something unexpected may happen.

I usually feel safe and relaxed.

I feel different from most people.

I often keep my thoughts to myself.

I feel misunderstood by others.

I feel connected with people around me.

I think ordinary events have a special meaning for me.

I feel that certain messages are directed at me.

I notice meaningful connections others may miss.

I rarely think events are about me.

I believe I have unusual abilities.

I feel I am meant for something important.

I believe my ideas are exceptional.

I see myself as an ordinary person.

I feel that outside forces influence me.

I feel my thoughts are influenced by others.

I feel events happen beyond my control.

I feel fully in control of my thoughts.

I rarely change my mind once convinced.

I trust my beliefs strongly.

I find it difficult to accept other explanations.

I easily consider different viewpoints.

I notice things others do not seem to notice.

I experience unusual coincidences.

I notice patterns that seem meaningful.

My experiences usually have ordinary explanations.

I feel certain my beliefs are correct.

I rarely doubt my conclusions.

I remain confident even when others disagree.

I often reconsider my opinions.

I check whether my beliefs match the evidence.

I look for facts before reaching conclusions.

I compare my beliefs with reality.

I rely on my feelings more than evidence.

I avoid situations because of my beliefs.

My beliefs affect my relationships.

My beliefs influence my daily decisions.

My beliefs rarely interfere with my life.