Abstract

Aim

In this study, we aimed to establish Turkish normative data for two versions of The Pyramids and Palm Trees Test (PPTT), pictorial (PPTT-P), and verbal (PPTT-V) using Turkish culture-specific items.

Methods

The study sample involves 181 participants stratified into three age groups and further stratified into three education levels and gender. The participants were given the PPTT versions along with a neuropsychological battery. Participants in the aged group were further screened for cognition and depression. The internal consistency, the convergent and discriminant validity of the PPTT versions, and predictors of the performance in the PPTT versions are statistically analyzed.

Results

The Cronbach's alpha coefficients for PPTT-P and PPTT-V were found as 0.48. and 0.42, respectively. Among the demographic variables, only education had an effect on the performances of both versions. Education level explained 21.2% of the variance in PPTT-P performance and 13.7% of the variance in PPTT-V performance. A cutoff score of 45 is proposed for the individuals with primary school education and 47 for those with higher education. Results suggested that both versions had moderate convergent but no discriminant validity.

Conclusions

Present findings suggest that PPTT is a useful neuropsychological instrument for assessing semantic memory in the Turkish population.

中文翻译：

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土耳其版金字塔和棕榈树测试的规范数据

摘要

目标

在这项研究中，我们旨在使用土耳其文化特定项目为金字塔和棕榈树测试 (PPTT)、图片 (PPTT-P) 和口头 (PPTT-V) 两个版本建立土耳其规范数据。

方法

研究样本涉及 181 名参与者，分为三个年龄组，并进一步分为三个教育水平和性别。参与者获得了 PPTT 版本以及神经心理学电池。对老年组的参与者进行了进一步的认知和抑郁筛查。对 PPTT 版本的内部一致性、收敛效度和判别效度以及 PPTT 版本的性能预测因子进行了统计分析。

结果

PPTT-P 和 PPTT-V 的 Cronbach α 系数为 0.48。和 0.42，分别。在人口统计变量中，只有教育对两个版本的表现都有影响。教育水平解释了 PPTT-P 表现差异的 21.2% 和 PPTT-V 表现差异的 13.7%。建议小学教育的人的截止分数为 45，受过高等教育的人为 47。结果表明，两个版本都具有适度的收敛效度，但没有区分效度。

结论

目前的研究结果表明，PPTT 是一种有用的神经心理学工具，用于评估土耳其人群的语义记忆。