Grief, Traumatic Stress, Usability
Conditions
Brief summary
This research will contribute to therapeutic technology to support bereaved parents who have experienced a perinatal loss. The proposed mobile application would accomplish this objective by providing a series of therapeutic modules to provide parents with tools to normalize their grief and additional coping skills to support the grieving process.
Detailed description
The investigators will develop grief processing and healing activities for bereaved parents, via an iterative formative development process with stakeholder input. The investigators will embed the core intervention components in administrative, provider, and client interfaces which will comprise the prototype Walk with Me (WWM) intervention. The investigators will evaluate its feasibility and initial efficacy of WWM in a within-subjects pre-post design study. The investigators will provide the mobile-based provider component for use by health care professionals (HCPs) who work in the partner hospital. HCPs will have access to training videos and bereaved parent content. After training, the HCPs will recruit 52 bereaved parents. HCPs will obtain consent from bereaved parents who express interest in the study to share their contact information with the research team. Parents who wish to participate will provide consent for their own participation in the study. After consent, parents will complete the baseline survey via the Qualtrics online assessment form and then be provided download access to the WWM prototype. At 4 and 8 weeks, parents will be administered post-treatment surveys. This design will allow the investigators to evaluate baseline to follow-up change in the proposed study outcomes and acceptability of the prototype WWM program. Baseline and post-treatment surveys will measure bereaved parents traumatic stress, grief intensity, grief, grief management self-efficacy, and care experiences. The post-survey questionnaire will contain measures of usability, as well as any difficulties experienced or problems made worse. Demographics will be collected at the baseline assessment. Project staff will follow-up with parents as needed to encourage survey completion in a timely manner.
Interventions
Walk with Me is a perinatal grief mobile application to provide supportive care to bereaved parents. The application includes modules to guide bereaved parents through strategies to help support them through their grieving.
Sponsors
Study design
Eligibility
Inclusion criteria
Inclusions Criteria Focus Groups and Usability Testing (Bereaved Parents) * Experienced a perinatal loss * Have had at least 6 months pass since experiencing the most recent loss * Age 15 and older Efficacy Study (Bereaved Parents) * Bereaved parent who has experienced a perinatal loss within the last two weeks \* Age 15 and older * Have access to technology to view WWM content
Exclusion criteria
\* Non-English speakers are excluded. The WWM program will first be developed in English and its feasibility established.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Traumatic Stress - Intrusion Subscale | Baseline (immediately following loss), 4 weeks and 8 weeks post loss | Impact of Event Scale-Revised (IES-R) includes 22 items on the past 7 days that represent symptoms of distress self-rated on a five-point scale: 0 indicates that the symptom occurs not at all; 1, a little bit; 2, moderately; 3, quite a bit; and 4, extremely. Participants will be instructed to relate the IES-R items specifically to the loss of their child. Three scale scores are computed including intrusions (8 items), avoidance (8 items) and hyperarousal (6 items). Each subscale ranges from 0 to 4 with higher scores indicating greater levels of distress/trauma. |
| Traumatic Stress - Avoidance Subscale | Baseline (immediately following loss), 4 weeks and 8 weeks post loss | Impact of Event Scale-Revised includes 22 items on the past 7 days that represent symptoms of distress self-rated on a five-point scale: 0 indicates that the symptom occurs not at all; 1, a little bit; 2, moderately; 3, quite a bit; and 4, extremely. Participants will be instructed to relate the IES-R items specifically to the loss of their child. Three scale scores are computed including intrusions (8 items), avoidance (8 items) and hyperarousal (6 items). Each subscale ranges from 0 to 4 with higher scores indicating greater levels of distress/trauma. |
| Traumatic Stress - Hyperarousal Subscale | Baseline (immediately following loss), 4 weeks and 8 weeks post loss | Impact of Event Scale-Revised includes 22 items on the past 7 days that represent symptoms of distress self-rated on a five-point scale: 0 indicates that the symptom occurs not at all; 1, a little bit; 2, moderately; 3, quite a bit; and 4, extremely. Participants will be instructed to relate the IES-R items specifically to the loss of their child. Three scale scores are computed including intrusions (8 items), avoidance (8 items) and hyperarousal (6 items). Each subscale ranges from 0 to 4 with higher scores indicating greater levels of distress/trauma. |
| Grief Intensity - Reality Subscale | Baseline (immediately following loss), 4 weeks and 8 weeks post loss | The Perinatal Grief Intensity Scale is 12 items that asks about an individuals' experiences with perinatal loss. Items are on a four-point scale from strongly disagree (1) to strongly agree (4). Three mean scale scores are computed including reality (5 items), congruence (4 items), and ability to confront others (2 items). Scores can range from 1 to 4 and higher scores indicate greater levels of grief intensity. |
| Grief Intensity - Congruence Subscale | Baseline (immediately following loss), 4 weeks and 8 weeks post loss | The Perinatal Grief Intensity Scale is 12 items that asks about an individuals' experiences with perinatal loss. Items are on a four-point scale from strongly disagree (1) to strongly agree (4). Three mean scale scores are computed including reality (5 items), congruence (4 items), and ability to confront others (2 items). Scores can range from 1 to 4 and higher scores indicate greater levels of grief intensity. |
| Grief Intensity - Ability to Confront Others Subscale | Baseline (immediately following loss), 4 weeks and 8 weeks post loss | The Perinatal Grief Intensity Scale is 12 items that asks about an individuals' experiences with perinatal loss. Items are on a four-point scale from strongly disagree (1) to strongly agree (4). Three mean scale scores are computed including reality (5 items), congruence (4 items), and ability to confront others (2 items). Scores can range from 1 to 4 and higher scores indicate greater levels of grief intensity. |
| Grief Management Self-efficacy | Baseline (immediately following loss), 4 weeks and 8 weeks post loss | Three items that rate the bereaved parents' confidence in their ability to cope with grief, use knowledge of mindfulness skills to cope, and engage in positive behaviors to help coping. Scores are on a six-point scale (1 to 6) with a mean total score that ranges from 1 to 6. Higher scores indicate greater self-efficacy. |
| Negative Attitudes on Personal Grief | Baseline (immediately following loss), 4 weeks and 8 weeks post loss | 6 items of experiences of care at the time of loss and follow-up appointments after loss. Responses on a 4-point scale from 1 (strongly disagree) to 4 (strongly agree) to indicate level of agreement. A means score was computed and could range from 1 to 4. Higher scores indicate more negative experiences. |
| Difficulties in Emotional Regulation - Nonacceptance of Emotional Response Subscale | Baseline (immediately following loss), 4 weeks and 8 weeks post loss | 11 items from the Difficulties in Emotional Regulation Scale (DERS) were assessed using a response option that ranged from 1 (almost never) to 5 (almost always). Two mean scale scores were computed including nonacceptance of emotional response (6 items) and lack of emotional awareness (5 items). Scale score could range from 1 to 5 with higher scores indicating greater difficulty regulating emotions. |
| Difficulties in Emotional Regulation - Lack of Emotional Response Subscale | Baseline (immediately following loss), 4 weeks and 8 weeks post loss | 11 items from the Difficulties in Emotional Regulation Scale (DERS) were assessed using a response option that ranged from 1 (almost never) to 5 (almost always). Two mean scale scores were computed including nonacceptance of emotional response (6 items) and lack of emotional awareness (5 items). Scale score could range from 1 to 5 with higher scores indicating greater difficulty regulating emotions. |
| Usability | Post-Treatment (8 weeks post loss) | The System Usability Scale is commonly used 10-item scale that measures subjective perceptions of usability on a 5-point Likert-scale. The participant's scores for each question are converted to a new number, added together and then multiplied by 2.5 to convert the original scores of 0-40 to 0-100. Higher scores indicate the technology is more usable. |
| Acceptability | Post-Treatment (8 weeks post loss) | Developed as part of the current study, 7 items were designed to measure the degree, on a 5-point Likert-type scale (1 = strongly or somewhat disagree, 5 = strongly or somewhat agree) to which parents found the program helpful, acceptable, and suited to their needs. A mean score was computed across all items and could range from 1 to 5. Higher scores indicate greater acceptability. |
| Program Use - Days Using the Program | Access to the program through through the study completion which was on average 2-months. | Program metrics on the backend of the program were used to track the total number of days the program was used. |
| Program Use - Modules Completed | Access to the program through through the study completion which was on average 2-months. | Program metrics on the backend of the program were used to track the the total number of modules completed out of the 6 modules. |
Countries
United States
Participant flow
Participants by arm
| Arm | Count |
|---|---|
| PeriGrief A brief four-module intervention delivered via computer or mobile device. Modules utilize mindfulness and cognitive behavioral therapy strategies to reduce distress following perinatal loss.
Walk with Me: Walk with Me is a perinatal grief mobile application to provide supportive care to bereaved parents. The application includes modules to guide bereaved parents through strategies to help support them through their grieving. | 52 |
| Total | 52 |
Withdrawals & dropouts
| Period | Reason | FG000 |
|---|---|---|
| Overall Study | Lost to Follow-up | 8 |
Baseline characteristics
| Characteristic | PeriGrief |
|---|---|
| Age, Continuous | 31.7 years STANDARD_DEVIATION 6.2 |
| Ethnicity (NIH/OMB) Hispanic or Latino | 6 Participants |
| Ethnicity (NIH/OMB) Not Hispanic or Latino | 46 Participants |
| Ethnicity (NIH/OMB) Unknown or Not Reported | 0 Participants |
| Number of times pregnant 1 | 13 Participants |
| Number of times pregnant 2 | 18 Participants |
| Number of times pregnant 3 | 12 Participants |
| Number of times pregnant 4 | 4 Participants |
| Number of times pregnant 5 or more | 5 Participants |
| Race (NIH/OMB) American Indian or Alaska Native | 1 Participants |
| Race (NIH/OMB) Asian | 1 Participants |
| Race (NIH/OMB) Black or African American | 6 Participants |
| Race (NIH/OMB) More than one race | 3 Participants |
| Race (NIH/OMB) Native Hawaiian or Other Pacific Islander | 2 Participants |
| Race (NIH/OMB) Unknown or Not Reported | 3 Participants |
| Race (NIH/OMB) White | 36 Participants |
| Relationship Status Divorced or separated | 1 Participants |
| Relationship Status Married or domestic partner | 45 Participants |
| Relationship Status Partnered in a serious relationship | 5 Participants |
| Relationship Status Single, dating | 1 Participants |
| Sex: Female, Male Female | 52 Participants |
| Sex: Female, Male Male | 0 Participants |
| Type of loss experienced - Chemical Pregnancy (i.e., loss before the 5th week) | 4 Participants |
| Type of loss experienced - Miscarriage in the first trimester | 21 Participants |
| Type of loss experienced - Neonatal loss | 7 Participants |
| Type of loss experienced - Stillbirth | 11 Participants |
| Type of loss experienced - Termination due to fetal abnormality/viability | 4 Participants |
| Type of loss experienced - Tubal or ectopic pregnancy | 1 Participants |
Adverse events
| Event type | EG000 affected / at risk |
|---|---|
| deaths Total, all-cause mortality | 0 / 52 |
| other Total, other adverse events | 0 / 52 |
| serious Total, serious adverse events | 0 / 52 |
Outcome results
Acceptability
Developed as part of the current study, 7 items were designed to measure the degree, on a 5-point Likert-type scale (1 = strongly or somewhat disagree, 5 = strongly or somewhat agree) to which parents found the program helpful, acceptable, and suited to their needs. A mean score was computed across all items and could range from 1 to 5. Higher scores indicate greater acceptability.
Time frame: Post-Treatment (8 weeks post loss)
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| PeriGrief | Acceptability | 2.88 units on a scale | Standard Deviation 0.29 |
Difficulties in Emotional Regulation - Lack of Emotional Response Subscale
11 items from the Difficulties in Emotional Regulation Scale (DERS) were assessed using a response option that ranged from 1 (almost never) to 5 (almost always). Two mean scale scores were computed including nonacceptance of emotional response (6 items) and lack of emotional awareness (5 items). Scale score could range from 1 to 5 with higher scores indicating greater difficulty regulating emotions.
Time frame: Baseline (immediately following loss), 4 weeks and 8 weeks post loss
Population: There were 52 participants with pretest data, 48 with 4-weeks data, and 44 is 8-weeks data. Trajectories were estimated using maximum likelihood and thus, any participant with at least one data point was included in the analyses. Thus, all 52 participants were analyzed.
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| PeriGrief | Difficulties in Emotional Regulation - Lack of Emotional Response Subscale | Pretest | 2.32 units on a scale | Standard Deviation 0.77 |
| PeriGrief | Difficulties in Emotional Regulation - Lack of Emotional Response Subscale | 4-weeks | 2.38 units on a scale | Standard Deviation 0.85 |
| PeriGrief | Difficulties in Emotional Regulation - Lack of Emotional Response Subscale | 8-weeks | 2.20 units on a scale | Standard Deviation 0.79 |
Difficulties in Emotional Regulation - Nonacceptance of Emotional Response Subscale
11 items from the Difficulties in Emotional Regulation Scale (DERS) were assessed using a response option that ranged from 1 (almost never) to 5 (almost always). Two mean scale scores were computed including nonacceptance of emotional response (6 items) and lack of emotional awareness (5 items). Scale score could range from 1 to 5 with higher scores indicating greater difficulty regulating emotions.
Time frame: Baseline (immediately following loss), 4 weeks and 8 weeks post loss
Population: There were 52 participants with pretest data, 48 with 4-weeks data, and 44 is 8-weeks data. Trajectories were estimated using maximum likelihood and thus, any participant with at least one data point was included in the analyses. Thus, all 52 participants were analyzed.
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| PeriGrief | Difficulties in Emotional Regulation - Nonacceptance of Emotional Response Subscale | Pretest | 2.25 units on a scale | Standard Deviation 1.19 |
| PeriGrief | Difficulties in Emotional Regulation - Nonacceptance of Emotional Response Subscale | 4 weeks | 2.35 units on a scale | Standard Deviation 0.93 |
| PeriGrief | Difficulties in Emotional Regulation - Nonacceptance of Emotional Response Subscale | 8 weeks | 2.08 units on a scale | Standard Deviation 0.95 |
Grief Intensity - Ability to Confront Others Subscale
The Perinatal Grief Intensity Scale is 12 items that asks about an individuals' experiences with perinatal loss. Items are on a four-point scale from strongly disagree (1) to strongly agree (4). Three mean scale scores are computed including reality (5 items), congruence (4 items), and ability to confront others (2 items). Scores can range from 1 to 4 and higher scores indicate greater levels of grief intensity.
Time frame: Baseline (immediately following loss), 4 weeks and 8 weeks post loss
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| PeriGrief | Grief Intensity - Ability to Confront Others Subscale | Pretest | 2.61 units on a scale | Standard Deviation 0.89 |
| PeriGrief | Grief Intensity - Ability to Confront Others Subscale | 4-weeks | 2.71 units on a scale | Standard Deviation 0.73 |
| PeriGrief | Grief Intensity - Ability to Confront Others Subscale | 8-weeks | 2.55 units on a scale | Standard Deviation 0.8 |
Grief Intensity - Congruence Subscale
The Perinatal Grief Intensity Scale is 12 items that asks about an individuals' experiences with perinatal loss. Items are on a four-point scale from strongly disagree (1) to strongly agree (4). Three mean scale scores are computed including reality (5 items), congruence (4 items), and ability to confront others (2 items). Scores can range from 1 to 4 and higher scores indicate greater levels of grief intensity.
Time frame: Baseline (immediately following loss), 4 weeks and 8 weeks post loss
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| PeriGrief | Grief Intensity - Congruence Subscale | Pretest | 2.48 units on a scale | Standard Deviation 0.6 |
| PeriGrief | Grief Intensity - Congruence Subscale | 4-weeks | 2.59 units on a scale | Standard Deviation 0.59 |
| PeriGrief | Grief Intensity - Congruence Subscale | 8-weeks | 2.66 units on a scale | Standard Deviation 0.58 |
Grief Intensity - Reality Subscale
The Perinatal Grief Intensity Scale is 12 items that asks about an individuals' experiences with perinatal loss. Items are on a four-point scale from strongly disagree (1) to strongly agree (4). Three mean scale scores are computed including reality (5 items), congruence (4 items), and ability to confront others (2 items). Scores can range from 1 to 4 and higher scores indicate greater levels of grief intensity.
Time frame: Baseline (immediately following loss), 4 weeks and 8 weeks post loss
Population: There were 52 participants with pretest data, 48 with 4-weeks data, and 44 is 8-weeks data. Trajectories were estimated using maximum likelihood and thus, any participant with at least one data point was included in the analyses. Thus, all 52 participants were analyzed.
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| PeriGrief | Grief Intensity - Reality Subscale | Pretest | 3.39 units on a scale | Standard Deviation 0.57 |
| PeriGrief | Grief Intensity - Reality Subscale | 4-weeks | 3.41 units on a scale | Standard Deviation 0.59 |
| PeriGrief | Grief Intensity - Reality Subscale | 8-weeks | 3.51 units on a scale | Standard Deviation 0.6 |
Grief Management Self-efficacy
Three items that rate the bereaved parents' confidence in their ability to cope with grief, use knowledge of mindfulness skills to cope, and engage in positive behaviors to help coping. Scores are on a six-point scale (1 to 6) with a mean total score that ranges from 1 to 6. Higher scores indicate greater self-efficacy.
Time frame: Baseline (immediately following loss), 4 weeks and 8 weeks post loss
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| PeriGrief | Grief Management Self-efficacy | Pretest | 4.26 units on a scale | Standard Deviation 0.94 |
| PeriGrief | Grief Management Self-efficacy | 4-weeks | 4.63 units on a scale | Standard Deviation 0.91 |
| PeriGrief | Grief Management Self-efficacy | 8-weeks | 4.66 units on a scale | Standard Deviation 1 |
Negative Attitudes on Personal Grief
6 items of experiences of care at the time of loss and follow-up appointments after loss. Responses on a 4-point scale from 1 (strongly disagree) to 4 (strongly agree) to indicate level of agreement. A means score was computed and could range from 1 to 4. Higher scores indicate more negative experiences.
Time frame: Baseline (immediately following loss), 4 weeks and 8 weeks post loss
Population: There were 52 participants with pretest data, 48 with 4-weeks data, and 44 is 8-weeks data. Trajectories were estimated using maximum likelihood and thus, any participant with at least one data point was included in the analyses. Thus, all 52 participants were analyzed.
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| PeriGrief | Negative Attitudes on Personal Grief | Pretest | 3.88 units on a scale | Standard Deviation 1.33 |
| PeriGrief | Negative Attitudes on Personal Grief | 4-weeks | 3.59 units on a scale | Standard Deviation 1.22 |
| PeriGrief | Negative Attitudes on Personal Grief | 8-weeks | 3.21 units on a scale | Standard Deviation 1.19 |
Program Use - Days Using the Program
Program metrics on the backend of the program were used to track the total number of days the program was used.
Time frame: Access to the program through through the study completion which was on average 2-months.
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| PeriGrief | Program Use - Days Using the Program | 21.40 days | Standard Deviation 23.39 |
Program Use - Modules Completed
Program metrics on the backend of the program were used to track the the total number of modules completed out of the 6 modules.
Time frame: Access to the program through through the study completion which was on average 2-months.
| Arm | Measure | Category | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|---|
| PeriGrief | Program Use - Modules Completed | Did not complete any modules | 4 Participants |
| PeriGrief | Program Use - Modules Completed | Completed one module | 10 Participants |
| PeriGrief | Program Use - Modules Completed | Completed two modules | 9 Participants |
| PeriGrief | Program Use - Modules Completed | Completed three modules | 6 Participants |
| PeriGrief | Program Use - Modules Completed | Completed four modules | 1 Participants |
| PeriGrief | Program Use - Modules Completed | Completed five modules | 3 Participants |
| PeriGrief | Program Use - Modules Completed | Completed all six modules | 8 Participants |
Traumatic Stress - Avoidance Subscale
Impact of Event Scale-Revised includes 22 items on the past 7 days that represent symptoms of distress self-rated on a five-point scale: 0 indicates that the symptom occurs not at all; 1, a little bit; 2, moderately; 3, quite a bit; and 4, extremely. Participants will be instructed to relate the IES-R items specifically to the loss of their child. Three scale scores are computed including intrusions (8 items), avoidance (8 items) and hyperarousal (6 items). Each subscale ranges from 0 to 4 with higher scores indicating greater levels of distress/trauma.
Time frame: Baseline (immediately following loss), 4 weeks and 8 weeks post loss
Population: There were 52 participants with pretest data, 48 with 4-weeks data, and 44 is 8-weeks data. Trajectories were estimated using maximum likelihood and thus, any participant with at least one data point was included in the analyses. Thus, all 52 participants were analyzed.
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| PeriGrief | Traumatic Stress - Avoidance Subscale | Pretest | 1.61 units on a scale | Standard Deviation 0.93 |
| PeriGrief | Traumatic Stress - Avoidance Subscale | 4-weeks | 1.44 units on a scale | Standard Deviation 0.94 |
| PeriGrief | Traumatic Stress - Avoidance Subscale | 8-weeks | 1.23 units on a scale | Standard Deviation 0.9 |
Traumatic Stress - Hyperarousal Subscale
Impact of Event Scale-Revised includes 22 items on the past 7 days that represent symptoms of distress self-rated on a five-point scale: 0 indicates that the symptom occurs not at all; 1, a little bit; 2, moderately; 3, quite a bit; and 4, extremely. Participants will be instructed to relate the IES-R items specifically to the loss of their child. Three scale scores are computed including intrusions (8 items), avoidance (8 items) and hyperarousal (6 items). Each subscale ranges from 0 to 4 with higher scores indicating greater levels of distress/trauma.
Time frame: Baseline (immediately following loss), 4 weeks and 8 weeks post loss
Population: There were 52 participants with pretest data, 48 with 4-weeks data, and 44 is 8-weeks data. Trajectories were estimated using maximum likelihood and thus, any participant with at least one data point was included in the analyses. Thus, all 52 participants were analyzed.
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| PeriGrief | Traumatic Stress - Hyperarousal Subscale | Pretest | 1.61 units on a scale | Standard Deviation 1.03 |
| PeriGrief | Traumatic Stress - Hyperarousal Subscale | 4-weeks | 1.53 units on a scale | Standard Deviation 1.04 |
| PeriGrief | Traumatic Stress - Hyperarousal Subscale | 8-weeks | 1.31 units on a scale | Standard Deviation 1.01 |
Traumatic Stress - Intrusion Subscale
Impact of Event Scale-Revised (IES-R) includes 22 items on the past 7 days that represent symptoms of distress self-rated on a five-point scale: 0 indicates that the symptom occurs not at all; 1, a little bit; 2, moderately; 3, quite a bit; and 4, extremely. Participants will be instructed to relate the IES-R items specifically to the loss of their child. Three scale scores are computed including intrusions (8 items), avoidance (8 items) and hyperarousal (6 items). Each subscale ranges from 0 to 4 with higher scores indicating greater levels of distress/trauma.
Time frame: Baseline (immediately following loss), 4 weeks and 8 weeks post loss
Population: There were 52 participants with pretest data, 48 with 4-weeks data, and 44 is 8-weeks data. Trajectories were estimated using maximum likelihood and thus, any participant with at least one data point was included in the analyses. Thus, all 52 participants were analyzed.
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| PeriGrief | Traumatic Stress - Intrusion Subscale | Pretest | 2.17 units on a scale | Standard Deviation 0.92 |
| PeriGrief | Traumatic Stress - Intrusion Subscale | 4-weeks | 1.93 units on a scale | Standard Deviation 0.9 |
| PeriGrief | Traumatic Stress - Intrusion Subscale | 8-weeks | 1.32 units on a scale | Standard Deviation 1.01 |
Usability
The System Usability Scale is commonly used 10-item scale that measures subjective perceptions of usability on a 5-point Likert-scale. The participant's scores for each question are converted to a new number, added together and then multiplied by 2.5 to convert the original scores of 0-40 to 0-100. Higher scores indicate the technology is more usable.
Time frame: Post-Treatment (8 weeks post loss)
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| PeriGrief | Usability | 74.4 units on a scale | Standard Deviation 13.5 |