Sleep Intervention

N/ACompletedNCT03047356

University of Manchester151 enrolled

Overview

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

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

SINGLE

Enrollment

151

Conditions

Mental

Interventions

"If-then" plansBEHAVIORAL

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

ControlOTHER

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

Eligibility

Sex: ALLMin age: 12 YearsMax age: 16 YearsHealthy volunteers:

Medical Language ↔ Plain English

Inclusion Criteria: * Aged 12-16 years Exclusion Criteria: * Unable or unwilling to complete the question

Outcomes

Primary Outcomes

Achieving recommended sleep levels

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."

Time frame: 1 month

Secondary Outcomes

Self-regulation

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")

Time frame: 1 month

Habit

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."

Time frame: 1 month

Data from ClinicalTrials.gov

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