Romantic relationship workshops for singles: Are they effective?

Last registered on September 19, 2022


Trial Information

General Information

Romantic relationship workshops for singles: Are they effective?
Initial registration date
September 14, 2022

Initial registration date is when the trial was registered.

It corresponds to when the registration was submitted to the Registry to be reviewed for publication.

First published
September 19, 2022, 4:09 PM EDT

First published corresponds to when the trial was first made public on the Registry after being reviewed.


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Primary Investigator

University of Missouri

Other Primary Investigator(s)

PI Affiliation
University of Missouri
PI Affiliation
University of Missouri

Additional Trial Information

In development
Start date
End date
Secondary IDs
Prior work
This trial does not extend or rely on any prior RCTs.
This study uses experimental techniques to evaluate the effects of an 8-week relationship education workshop and (randomized) bonus session for single adults (1) understanding self- values and past relationship behaviors, (2) understanding healthy partner characteristics and dynamics, (3) enhancing intentional relationship decision making skills, (4) avoiding destructive conflict, and (5) enhancing effective communication. Specifically, we will conduct a Randomized Control Trial (RCT) impact evaluation to test the effects of a 6-month bonus session as a strategy to enhance and sustain improvements in targeted outcomes following completion the core Within My Reach (WMR) program. Participants who enroll for the RCT will be randomly assigned to receive a 2-hour bonus session 6-months following the completion of the core 8-week WMR workshop. The core WMR program is to implement a 16-hour evidence-based relationship education curriculum, WMR, to single adults that is specifically designed to address the needs of low-income individuals and families.
External Link(s)

Registration Citation

Arteaga, Irma, Melissa Herzog and Chelsea Rosner. 2022. "Romantic relationship workshops for singles: Are they effective?." AEA RCT Registry. September 19.
Sponsors & Partners

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Experimental Details


Among those participants who complete the WMR workshop, at 6-months post-WMR, individuals who have agreed to participate in our Bonus study will be randomly assigned into one of two groups: to receive a one-time, 2-hour bonus session (bonus) or not to receive it (no bonus). All of these participants will complete a follow-up survey prior to notification of their assigned group. Next, those in the bonus group will participate in the bonus session within 2 weeks of completion of the 5-month post-WMR survey (those in no bonus will receive nothing additional). Data to answer this research question will be collected via surveys distributed to all participants regardless of assigned group at roughly 5-months post-WMR (baseline data) and at 9-months post-WMR (which is about 3-3.5 months after the bonus session).
Intervention Start Date
Intervention End Date

Primary Outcomes

Primary Outcomes (end points)
1. Attitudes about relationships and singlehood
2. Relationship decision making and tendencies in intimacy relationships: deciding scale, communication competence scale, attitudes toward intimate partner violence, breakup skills
Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
Individuals will be randomly assigned to treatment (online bonus session) and control (no bonus session) groups after completion of the WMR workshop (only workshop completers are eligible for the RCT). Because the WMR program will occur on a rolling basis across all SMHR partner sites, the local evaluation team will be informed of the conclusion of each WMR workshop series. Exactly 5 months later, all consented participants will be contacted for a 5-month follow-up survey. Upon completion of the 5-month survey, the local evaluation team will randomly assign participants to treatment or comparison group using STATA command sample in a rolling basis. In other words, roughly every two weeks, a new group of individuals will become eligible to take the 5-months survey; after completion of the survey the evaluation team will randomly assign them to treatment (receive a bonus session) or control group. The evaluation team will get a list of completers every two weeks and we will draw a lottery. In other words, this process will repeat approximately every two weeks. In every cycle, half of the participants will be randomly assigned to the bonus session and the other half to the control group. Randomization will be performed at the individual level.
Experimental Design Details
Not available
Randomization Method
Randomization done in office by a computer
Randomization Unit
Was the treatment clustered?

Experiment Characteristics

Sample size: planned number of clusters
No clusters
Sample size: planned number of observations
The sample size consists of about 1,000 individuals at 5-months post-WMR. Participants are all single adults, 18 years of age or older.
Sample size (or number of clusters) by treatment arms
No clusters
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
The power analysis calculations below were computed to examine if there is enough statistical power to detect effects if the Bonus program was in fact effective. Power analysis is typically used for impact evaluations and, as such, this power analysis corresponds only to RQ 2. We used the command power in STATA assuming power of 80% and alpha of 5%, and input outcome means and standard deviations using data from the previous SMHR 5-year program (Garneau-Rosner & Herzog, 2015-2020) to compute the minimum detectable effects of a change in means in key measures of relationship decision making, relationship attitudes, parenting outcomes, perceived stress, and personal resilience/optimism. Our calculations show that the minimum detectable effects for these measures range from 0.14 to 0.25 for the majority of the outcome variables. Please notice that Table 2 only includes variables that we collected in a previous program and not all of the variables that we will use in the present studyout of 12 outcome variables . The outcome variables that we will examine in the present study can be found in Appendix D. Consistent with the literature which typically uses a minimum detectable effect size of 0.25, and following Wolf (1986) who reported 0.25 as a strong enough effect to indicate a practical change in non-clinical samples when evaluating educational programs, our final sample size will have sufficient power to detect effects over the full course of the RCT.

Institutional Review Boards (IRBs)

IRB Name
University of Missouri
IRB Approval Date
IRB Approval Number