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Related Concept Videos

Group Design02:01

Group Design

The most basic experimental design involves two groups: the experimental group and the control group. The two groups are designed to be the same except for one difference— experimental manipulation. The experimental group gets the experimental manipulation—that is, the treatment or variable being tested—and the control group does not. Since experimental manipulation is the only difference between the experimental and control groups, we can be sure that any differences between the two are due to...
Blind Procedures02:07

Blind Procedures

Ideally, the people who observe and record the children’s behavior are unaware of who was assigned to the experimental or control group, in order to control for experimenter bias. Experimenter bias refers to the possibility that a researcher’s expectations might skew the results of the study. Remember, conducting an experiment requires a lot of planning, and the people involved in the research project have a vested interest in supporting their hypotheses. If the observers knew which child was...
Controls in Experiments01:13

Controls in Experiments

When conducting an experiment, it is crucial to have control to reduce bias and accurately measure the dependent variables. It also marks the results more reliable. Controls are elements in an experiment that have the same characteristics as the treatment groups but are not affected by the independent variable. By sorting these data into control and experimental conditions, the relationship between the dependent and independent variables can be drawn. A randomized experiment always includes a...
Randomized Experiments01:13

Randomized Experiments

The randomization process involves assigning study participants randomly to experimental or control groups based on their probability of being equally assigned. Randomization is meant to eliminate selection bias and balance known and unknown confounding factors so that the control group is similar to the treatment group as much as possible. A computer program and a random number generator can be used to assign participants to groups in a way that minimizes bias.
Simple randomization
Simple...
Blinding01:11

Blinding

Blinding is a commonly used method of not telling participants which treatment a subject is receiving. Blinding is a critical part of a randomized control trial or RCT. It reduces the bias that affects the results. In an RCT, blinding is used in the form of a placebo. A placebo effect occurs when untreated subjects falsely believe they have received the treatment and report improved symptoms. A placebo or a dummy treatment is administered to subjects to negate the bias caused by such an effect.
Bioequivalence Experimental Study Designs: Repeated Measures, Cross-Over, Carry-Over, and Latin Square Designs01:15

Bioequivalence Experimental Study Designs: Repeated Measures, Cross-Over, Carry-Over, and Latin Square Designs

Bioequivalence experimental study designs play a pivotal role in testing the effectiveness of various treatments. Key among these are the repeated measures, cross-over, carry-over, and Latin square designs. In the repeated measures design, each subject receives all treatments, allowing for temporal comparisons. This type of design is useful in reducing variability but requires careful planning to avoid bias.The cross-over design, an economical method, involves sequential administration of...

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Parents and procedures: a randomized controlled trial

H Bauchner1, R Vinci, S Bak

  • 1Division of General Pediatrics, Boston University School of Medicine, Boston Medical Center (formerly Boston City Hospital), MA 02118, USA.

Pediatrics
|November 1, 1996
PubMed
Summary
This summary is machine-generated.

Parental presence during pediatric procedures did not increase pain or negatively impact procedure outcomes. Parents who were present reported lower anxiety levels compared to those not present, challenging traditional beliefs.

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Area of Science:

  • Pediatric Emergency Medicine
  • Clinical Psychology
  • Healthcare Delivery

Background:

  • Parents generally prefer to be present during their children's medical procedures.
  • Physician attitudes towards parental presence during pediatric procedures are often ambivalent.

Purpose of the Study:

  • To evaluate a parent-focused intervention's impact on pediatric procedural pain and performance.
  • To assess the intervention's effect on parent and clinician anxiety and parental satisfaction.
  • To determine the efficacy of parental presence during common pediatric invasive procedures.

Main Methods:

  • A randomized controlled trial involving 431 children under three undergoing venipuncture, cannulation, or catheterization.
  • Three groups were studied: parents present with intervention (instructions), parents present without intervention, and parents not present.
  • Outcomes measured included pain, procedure performance (attempts, time), clinician anxiety, and parental satisfaction.

Main Results:

  • No significant differences were found in pain levels, procedure performance, clinician anxiety, or parental satisfaction across the groups.
  • Parents present during procedures rated their children's pain as more severe than clinicians did (52% vs. 15%).
  • Parents who were present reported significantly lower anxiety levels than those who were not present.

Conclusions:

  • The parent-focused intervention did not effectively reduce procedural pain in young children.
  • Parental presence during common pediatric procedures did not negatively affect procedure performance or increase clinician anxiety.
  • Encouraging parental presence is supported, as it reduces parental anxiety without compromising care quality.