Table 2.
Results from the principal components analysis with varimax rotation.
| Factors/Items (Cronbach α) for subscale loadings | Factor loadings |
|---|---|
| Study satisfaction (α = 0.91) | |
| My decision to do the study was easy. | 0.809 |
| I was given enough information about the research study before I decided to join. | 0.717 |
| The study team did a good job explaining the study to me. | 0.731 |
| It was easy for me to ask the study team questions. | 0.582 |
| The study team cared about my health and safety. | 0.693 |
| The study team treated me with respect. | 0.872 |
| I felt the study team cared about keeping my health information confidential. | 0.769 |
| I got good care from the study team. | 0.554 |
| Overall, I am very happy with the study. | 0.612 |
| Fate/God factor (α = 0.73) | |
| I believe that fate, destiny or God's will make me get the right treatment. | 0.784 |
| No matter what I do or don't do, God is in control of my health. | 0.775 |
| I feel connected to God, my Creator, or some other higher power. | 0.812 |
| Social norms (α = 0.73) | |
| People in my community or my family usually don't trust dentists. | 0.761 |
| People in my community or my family usually don’ trust research. | 0.769 |
| My people, culture or religion does not support my participating in research. | 0.730 |
| Pain (α = 0.61) | |
| I suffer daily from unhappy thoughts, sadness or nervousness. | 0.850 |
| I suffer from physical/dental pain every day. | 0.765 |
| Purpose (α = 0.70) | |
| I wanted to do the study so I could help others. | 0.503 |
| The reason for the study is to answer questions about new treatments. | 0.816 |
| I think I got the treatment that I wanted. | 0.783 |
| Negative Attitudes (α = 0.53) | |
| The study took much more time than I thought it would. | 0.690 |
| I had bad side effects during the study. | 0.648 |
| Dental care (α = 0.48) | |
| I thought the study was going to cure me. | 0.727 |
| I did the study because I wanted free dental care. | 0.701 |
| I worried about my safety during the study. | 0.491 |
| Study consent (α = 0.62) | |
| I knew the possible risks of the study before I joined. | 0.517 |
| I was told I could quit the study any time. | 0.729 |
| I got a copy of the consent form. | 0.667 |
| Financial Issues (α = 0.54) | |
| I probably would NOT have done the study if they hadn't paid me to do it. | 0.782 |
| I did the study because I needed the money. | 0.750 |
| Autonomy (α = 0.61) | |
| I only did the study because someone else wanted me to do it. | −0.831 |
| It was my choice and my choice alone to do the study. | 0.591 |
| Health worries (Single item) | |
| I worry about my health every day. | 0.647 |
| Need for dental research (Single item) | |
| Dental studies are needed to find new and better ways to treat or prevent disease | −0.793 |