Lafayette Grooved Pegboard Test

Lafayette Grooved Pegboard Test

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Lafayette Grooved Pegboard Test is a manipulative dexterity test with 25 holes and 25 slots that are distributed at random. Pegs with a key along one side must be rotated to match the hole before they can be inserted. Compared to most pegboard tasks, this one involves more complex visual-motor coordination. Common applications include analyzing lateralized brain injury and using screening techniques in industry.

Express shipping (Next Day/Second Day) not available for this product. It can be shipped via ground only.

Item # Desc Pkg Price
32025 Grooved Pegboard Test Each

Features of Grooved Pegboard Test

  • Great for patients who have suffered a stroke or other neurological issues that require neuropsychological tests
  • Plastic pegboard and pegs designed to test motor skills, such as pinching, finger dexterity, and coordination, to improve function and visual coordination
  • Unique shaped pegs and peg holes that require the metal pegs to be rotated to match the hole before they can be inserted
  • Grooved Pegboard Test requires more complex visual-motor coordination than most pegboards
  • 25 holes with randomly positioned slots force the patient to make accurate hand motions for hand dexterity training

What to buy with Pegboard by Lafayette

How to use Lafayette Grooved Pegboard?

Pegboard administration instructions:

  • The apparatus is placed with the peg tray oriented above the pegboard.
  • The person is instructed to insert the pegs, matching the groove of the peg with the groove of the hole, filling the rows in a given direction as quickly as possible, without skipping any slots.
  • Using the right hand, the patient is asked to work from left to right, and with the left hand, in the opposite direction.
  • The dominant hand is tested first. The patient is warned that only one peg should be picked up at a time and that only one hand is to be used.
  • If a peg is dropped, the examiner does not retrieve it; rather, one of the pegs correctly placed (usually, the first or second peg) is taken out and used again.
  • The examiner demonstrates one row before allowing the patient to begin. A practice trial is not given, and a trial may be discontinued after 5 min.
  • In the HRNES (Russell and Starkey, 1993) version, the person continues until all pegs have been placed or until a time limit of 3 min has been reached.
  • ln both versions, the examiner begins timing after cueing the individual to begin.

How much administration time required?

The time required is 5 minutes.

How to calculate score?

The score is computed for each hand separately and is the time required to place the pegs. Some researchers also record the number of pegs not placed and the number of pegs dropped; these errors may be considered clinically and are rarely seen in neurologically normal individuals.

Demographic Effect


  • Age has a strong impact on test scores, with performance improving (faster times) in childhood and declining with advancing age (e.g., Bornstein, 1985; Concha et al., 1995; Mitrushina et al., 2005; Ruff & Parker, 1993; Selnes et al., 1991).
  • According to Heaton et al. (2004), about 30 degrees to 31 degrees of the variance in test scores is accounted for by age.


  • Some have found significant gender differences in performance, with women outperforming men (Bornstein, 1985; Ruff & Parker, 1993; Schmidt et al., 2000), perhaps reflecting differences in finger size (Peters et al., 1990).
  • However, others have noted that gender has little effect on test scores (Concha et al., 1995; Heaton et al., 2004; Mitrushina et al., 2005), accounting for less than 1% of the variance in test scores (Heaton et al., 2004).
  • No gender effect has been found in children (Rosselli et al., 2001).

Hand Preference

  • Performance is faster with the dominant/preferred hand (Bryden et al., 1998; Heaton et al., 2004). Handedness (right, left) does not affect test scores (Ruff & Parker, 1993).


  • Some have reported that better educated individuals perform faster (Ruff St Parker, 1993).
  • However, others have found that education has little or only a small effect (Bernstein, 1985; Concha et al., 1995; Mitrushina et al., 2005; Selnes et al.,1991), accounting for about 3% to 6% of the variance test scores (Heaton et al., 2004).


  • The impact of ethnicity has not been reported.

Intermanual Differences

  • Neither age, education, nor hand preference is related to intermanual differences scores on the Grooved Pegboard (Bornstein, 1986c; Ruff & Parker, 1993; Thompson et al., 1987); however, intermanual differences tend to be larger for females than for males

Grooved Pegboard Test User's Manual
Grooved Pegboard Test Quick Start Guide

How to clean Lafayette Grooved Pegboard Dexterity Test?

  • Isopropyl alcohol is preferred.
  • No other cleaners are recommended.
  • Do not use bleach or hydrogen peroxide.
  • Clean pins with Isopropyl alcohol only.

Disclaimer: The cleaning instructions for Lafayette Instrument products are a recommendation of compatible cleaning materials only. Product end users are responsible for instituting an appropriate cleaning regimen utilizing best practices and techniques. Lafayette Instrument assumes no responsibility for the cleanliness or sanitation of the products after initial use nor makes any claim that the use of the recommended cleaning materials mitigates all risk of potential cross infection.

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