OBJECTIVE: The 40 item amyotrophic lateral sclerosis assessment questionnaire (ALSAQ-40) is a subjective health measure designed specifically to assess areas of importance to patients with ALS. It was designed for use in surveys and clinical trials of this patient group, and has been assessed for reliability and validity. Despite its relative brevity there are situations where an even shorter form of the instrument would be desirable. Consequently, this paper reports a process of item reduction which results in a brief five item version of the instrument. METHODS: Data from two surveys of patients with ALS who completed the ALSAQ-40 were analysed to develop a short form ALSAQ. Questionnaire items were correlated with their dimension total s...
OBJECTIVES: To evaluate the validity and reliability of the amyotrophic lateral sclerosis assessme...
The Amyotrophic Lateral Sclerosis Assessment Questionnaire (ALSAQ-40) is the most widely validated m...
INTRODUCTION: The Amyotrophic Lateral Sclerosis (ALS)-Specific Quality of Life instrument and its re...
OBJECTIVE: The 40 item amyotrophic lateral sclerosis assessment questionnaire (ALSAQ-40) is a subjec...
OBJECTIVES: To compare results on the 40-item Amyotrophic Lateral Sclerosis Assessment Questionnaire...
OBJECTIVES: To evaluate response rate, data quality, and score reliability of the 40 item Amyotrophi...
Objectives: To use statistical procedures, operationalising what is known as item response theory (I...
OBJECTIVES: To determine the amount of change over time on the five dimensions of the 40-item Amyotr...
OBJECTIVES: The purpose of the study was to assess the validity and reliability of a new disease spe...
OBJECTIVES: The purpose of the study was to assess the validity and reliability of a new disease spe...
(1) Background: Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disease. There is no evid...
OBJECTIVES: To evaluate response rate, data quality, score reliability and scaling assumptions of th...
This paper examines the sensitivity to change over time of the Amyotrophic Lateral Sclerosis Assessm...
This paper uses the standard error of measurement (SEM) and the standard error of the difference (S(...
Objectives To evaluate response rate, data quality, score reliability and scaling assumptions of the...
OBJECTIVES: To evaluate the validity and reliability of the amyotrophic lateral sclerosis assessme...
The Amyotrophic Lateral Sclerosis Assessment Questionnaire (ALSAQ-40) is the most widely validated m...
INTRODUCTION: The Amyotrophic Lateral Sclerosis (ALS)-Specific Quality of Life instrument and its re...
OBJECTIVE: The 40 item amyotrophic lateral sclerosis assessment questionnaire (ALSAQ-40) is a subjec...
OBJECTIVES: To compare results on the 40-item Amyotrophic Lateral Sclerosis Assessment Questionnaire...
OBJECTIVES: To evaluate response rate, data quality, and score reliability of the 40 item Amyotrophi...
Objectives: To use statistical procedures, operationalising what is known as item response theory (I...
OBJECTIVES: To determine the amount of change over time on the five dimensions of the 40-item Amyotr...
OBJECTIVES: The purpose of the study was to assess the validity and reliability of a new disease spe...
OBJECTIVES: The purpose of the study was to assess the validity and reliability of a new disease spe...
(1) Background: Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disease. There is no evid...
OBJECTIVES: To evaluate response rate, data quality, score reliability and scaling assumptions of th...
This paper examines the sensitivity to change over time of the Amyotrophic Lateral Sclerosis Assessm...
This paper uses the standard error of measurement (SEM) and the standard error of the difference (S(...
Objectives To evaluate response rate, data quality, score reliability and scaling assumptions of the...
OBJECTIVES: To evaluate the validity and reliability of the amyotrophic lateral sclerosis assessme...
The Amyotrophic Lateral Sclerosis Assessment Questionnaire (ALSAQ-40) is the most widely validated m...
INTRODUCTION: The Amyotrophic Lateral Sclerosis (ALS)-Specific Quality of Life instrument and its re...