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Semantic Measures: Using Natural Language Processing to Measure, Differentiate and Describe Psychological Constructs

Artikel i vetenskaplig tidskrift
Författare Oscar N. E. Kjell
Katarina Kjell
Danilo Garcia
Sverker Sikström
Publicerad i Psychological Methods
Volym 24
Nummer/häfte 1
Sidor 95-115
ISSN 1082-989X
Publiceringsår 2019
Publicerad vid Psykologiska institutionen
Sidor 95-115
Språk en
Länkar https://doi.org/10.1037/met0000191
Ämnesord Psychological Assessment; Natural Language Processing; Latent Semantic Analyses; Health; Subjective Well-Being
Ämneskategorier Psykologi

Sammanfattning

Psychological constructs, such as emotions, thoughts and attitudes are often measured by asking individuals to reply to questions using closed-ended numerical rating scales. However, when asking people about their state of mind in a natural context (“How are you?”), we receive open-ended answers using words (“fine and happy!”) and not closed-ended answers using numbers (“7”). Nevertheless, to date it has been difficult to objectively quantify responses to open-ended questions. We develop an approach using open-ended questions in which the responses are analyzed using natural language processing (Latent Semantic Analyses). This approach of using open-ended, semantic questions is compared with traditional rating scales in nine studies (N=92-854), including two different study paradigms. The first paradigm requires participants to describe psychological aspects of external stimuli (facial expressions) and the second paradigm involves asking participants to report their subjective well-being and mental health problems. The results demonstrate that the approach using semantic questions yields good statistical properties with competitive, or higher, validity and reliability compared with corresponding numerical rating scales. As these semantic measures are based on natural language and measure, differentiate and describe psychological constructs, they have the potential of complementing and extending traditional rating scales.

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