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OpenTrials
Completed

NCT Number: NCT03047356

Sleep Intervention

A trial that tests whether implementation intentions improve sleep among adoelescents.

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Key information

Conditions

Mental

Age range

12 year–16 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Aged 12-16 years

Exclusion criteria

  • Unable or unwilling to complete the question

Treatment and study plan

"If-then" plans

Behavioral

"If-then" plans (or "implementation intentions") involve linking in memory critical situations (e.g., temptations) with appropriate responses (e.g., substitution)

Control

Other

Exposure to critical situations (e.g., temptations) and appropriate responses (e.g., substitution) but not linked in memory

Primary outcomes

  1. Achieving recommended sleep levels

    Time frame: 1 month

    The main outcome measure was adapted from the Pittsburgh Sleep Quality Index (Buysse, Reynolds, Monk, Berman, & Kupfer, 1989), and was designed to tap both quantity and quality of sleep. Sleep quantity was assessed by asking: "How many hours of actual sleep do you normally get on a night before school? _________ hours," "What time do you normally go to bed on a night before school? __________ pm," and "What time do you normally get up on a school day? __________ am."

Secondary outcomes

  1. Self-regulation

    Time frame: 1 month

    Sniehotta, Nagy, and Scholz's (2006) six items were used to capture three facets of action control (Karoly, 1993) on 7-point (+1 to +7) strongly disagree-strongly agree scales. (e.g., "During the last month I constantly monitored my sleep on the nights before school")

  2. Habit

    Time frame: 1 month

    Gardner et al.'s (2012) self-report behavioral automaticity index, which consists of four items measured on 7-point strongly disagree-strongly agree scales. The items are: "Getting 9 hours' sleep on the nights before school is something I do automatically," "Getting 9 hours' sleep on the nights before school is something I do without thinking," "Getting 9 hours' sleep on the nights before school is something I do without having to consciously remember," and "Getting 9 hours' sleep on the nights before school is something I start doing before I realize I'm doing it."

Sponsors and collaborators

Lead sponsor

University of Manchester

Other

Registry information

Official study title

Effects of "If-then" Plans ("Implementation Intentions") on Adolescent Sleep

Important dates

Study start
2016
Primary completion
2016
Study completion
2016
First posted
Feb 8, 2017
Registry last updated
Feb 8, 2017

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.