有多少次是"经常"? 改进使用绝对频率对外化频谱的评估.
Isaac T Petersen1, Zachary Demko1, Philipp Doebler2
1Department of Psychological and Brain Sciences, University of Iowa.
Psychological assessment
|December 4, 2025
概括
使用绝对频率计数来评估外部化问题,而不是模糊的术语,提供了更高的精度. 这种方法可以更准确地了解不同年龄组和性别的行为模式.
科学领域:
- 心理学 心理学 心理学
- 心理测量 心理测量 心理测量
背景情况:
- 对于外部化问题的传统问卷依赖于不准确的量化器 (例如",经常") 或二进制真错答案.
- 这些模糊的量化器在解释和精确性方面带来了挑战.
研究的目的:
- 评估绝对频率量化的实用性,以评估外部化的频谱.
- 为了确定数值计数是否为测量外部化行为提供了比模糊量化器更精确的替代方案.
主要方法:
- 从外部化频谱库存中调整了项目,以评估30天期间的绝对频率.
- 收集了1237名成年人 (18-92岁) 的数据,使用每日,每周,每月或每年的行为计数.
- 使用潜伏分数分析来评估有效性,并与二分化项目版本的精度进行比较.
主要成果:
- 外化问题随着年龄的增长而减少,在各年龄段 (早期,中年和老年成人) 观察到明显的性别差异.
- 绝对频率的测量表明了收性,区分性,标准性和增量有效性.
- 与二分化数据相比,计数数据在估计外部化问题水平方面提供了显著更高的精度.
结论:
- 绝对频率是评估外部化行为的一种有价值的方法,提供了更高的精度和可解释性.
- 这种方法可以提高研究和临床环境中外部化问题的测量精度.
相关概念视频
Discrete Fourier Transform
827
The Discrete Fourier Transform (DFT) is a fundamental tool in signal processing, extending the discrete-time Fourier transform by evaluating discrete signals at uniformly spaced frequency intervals. This transformation converts a finite sequence of time-domain samples into frequency components, each representing complex sinusoids ordered by frequency. The DFT translates these sequences into the frequency domain, effectively indicating the magnitude and phase of each frequency component present...
827
Aliasing
526
Accurate signal sampling and reconstruction are crucial in various signal-processing applications. A time-domain signal's spectrum can be revealed using its Fourier transform. When this signal is sampled at a specific frequency, it results in multiple scaled replicas of the original spectrum in the frequency domain. The spacing of these replicas is determined by the sampling frequency.
If the sampling frequency is below the Nyquist rate, these replicas overlap, preventing the original...
If the sampling frequency is below the Nyquist rate, these replicas overlap, preventing the original...
526


